{"id":25024100,"date":"2026-09-27T09:52:54","date_gmt":"2026-09-27T07:52:54","guid":{"rendered":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/"},"modified":"2026-09-27T09:53:23","modified_gmt":"2026-09-27T07:53:23","slug":"boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/","title":{"rendered":"Boeing 737 MAX Software Glitch: VNAV Can Drop Out in a Go-Around"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n\r\n<p>A go-around is the one manoeuvre every airline pilot rehearses until it is boring, because when it happens for real it is anything but. Full thrust, nose up, gear and flaps coming in, a new clearance on the radio. It is precisely the moment Boeing has now admitted that some 737 MAX software can quietly hand a piece of the job back to the crew.<\/p>\r\n\r\n<p>On 26 September 2026 The Wall Street Journal reported that Boeing had found a flaw in the flight management software of its newest 737 variants. Boeing confirmed it, the FAA said it is convening a Corrective Action Review Board, and the timing could hardly be worse: the problem sits in the software for the 737 MAX 7 and the 737 MAX 10, the two models Boeing has spent years trying to get across the certification line.<\/p>\r\n\r\n\r\n<div style=\"background:#f4f5f7;border:1px solid #e2e7ee;padding:18px 22px;margin:8px 0 28px\"><p style=\"margin:0 0 10px;font-weight:700;font-size:17px\">Quick Facts<\/p><ul style=\"margin:0;padding-left:20px;line-height:1.7\"><li><strong>What:<\/strong> Vertical navigation (VNAV) can disengage during a specific go-around scenario<\/li><li><strong>Aircraft:<\/strong> Boeing 737 MAX 7 and 737 MAX 10 flight software, per CBS News versions 14 and 14.1<\/li><li><strong>First reported publicly:<\/strong> 26 September 2026, by The Wall Street Journal<\/li><li><strong>Regulator:<\/strong> FAA convening a Corrective Action Review Board (CARB)<\/li><li><strong>Boeing position:<\/strong> Existing pilot procedures manage the situation; a permanent software fix is in work<\/li><li><strong>Fix timing:<\/strong> Originally planned for 2028; Boeing says it is working to accelerate it<\/li><li><strong>Deliveries:<\/strong> MAX 7 and MAX 10 both targeted for customer deliveries in 2027<\/li><\/ul><\/div>\r\n<h2 style=\"padding-top:22px\">What Actually Goes Wrong<\/h2>\r\n\r\n<p>The scenario is narrow. According to Boeing and the reporting by CBS News and AeroTime, it needs a precision approach flown with the autopilot engaged, followed by a go-around, followed by the crew changing the pre-programmed flight path. In that sequence VNAV can drop out. The autopilot keeps flying, but falls back to a simpler pitch mode instead of following the vertical profile the flight management computer had planned.<\/p>\r\n\r\n<p>VNAV is the part of the flight management system that works out the climbs and descents needed to meet the altitude constraints along a programmed route. Lose it and nothing falls out of the sky. What changes is the workload: the pilots must manage the vertical path themselves, at low altitude, while they are already reconfiguring the aircraft, talking to air traffic control and setting up for another approach.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-flight-deck-cockpit.jpg\" alt=\"Boeing 737 MAX flight deck\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">The 737 MAX flight deck. The glitch affects how the flight management software handles the vertical path after a go-around, not the aircraft&#39;s basic controls. Photo: GeoMancer448 \/ Wikimedia Commons, CC BY 4.0<\/figcaption><\/figure>\r\n\r\n\r\n<p>That is why the FAA is treating it seriously even though Boeing says existing procedures cover it. A Corrective Action Review Board is the FAA process for deciding whether an issue is a safety problem that needs mandatory action. The agency has said it will act immediately if the review finds one.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #1565c0;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>&ldquo;Last month, we informed all 737 operators about a software issue where pilots may not have access to automated flight guidance during a specific landing scenario.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Boeing<\/strong> &mdash; statement reported by CBS News, 26 September 2026<\/div><\/div><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Nearly Two Years in the Making<\/h2>\r\n\r\n<p>The awkward part is the timeline. CBS News reported that an airline first flagged the behaviour to Boeing in November 2024, and that Boeing concluded in February 2025 that it was not a safety concern. Further information from operators later prompted a formal safety review, and the FAA was notified in September 2026. Boeing told operators about the issue a month before it became public.<\/p>\r\n\r\n<p>According to CBS News, Southwest Airlines and United Airlines declined to take deliveries with the affected software, while Alaska, American, Southwest and United all said their in-service MAX fleets do not run the problematic versions. The FAA put its own position in careful terms.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #5C91FF;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>&ldquo;The FAA is aware of a potential issue in a software update for the flight computers on certain Boeing 737 MAX airplanes and is working closely with Boeing and the airlines.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Federal Aviation Administration<\/strong> &mdash; statement reported by CBS News<\/div><\/div><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Why the MAX 7 and MAX 10 Can&#39;t Afford This<\/h2>\r\n\r\n<p>The MAX 7 is the smallest member of the family and the MAX 10 the largest. Both have been stuck in certification for years, and every month of delay pushes back aircraft that airlines ordered long ago. The MAX 7 now holds its FAA type certificate; the MAX 10 is approaching the final stages. Both are targeted for customer deliveries in 2027, according to AeroTime.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-7-n7201s-farnborough.jpg\" alt=\"Boeing 737 MAX 7 test aircraft N7201S\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">Boeing&#39;s 737 MAX 7 test aircraft N7201S, the smallest member of the MAX family. Photo: Anna Zvereva \/ Wikimedia Commons, CC BY-SA 2.0<\/figcaption><\/figure>\r\n\r\n\r\n<p>Bloomberg reported that Boeing acknowledged the software issue may delay the arrival of its latest narrowbody models. A permanent fix had been planned for 2028. Boeing now says it is working to bring that forward, and a pilot bulletin is being prepared in the meantime so crews know exactly what to expect if VNAV drops out.<\/p>\r\n\r\n<p>None of this puts current MAX 8 or MAX 9 fleets on the ground, and the airlines that responded say their in-service aircraft are not affected. But after the years the MAX spent under a regulatory microscope, any software surprise in a 737 cockpit gets read twice. How quickly Boeing ships the fix, and what the review board decides, will say a lot about how quickly the two newest 737s reach passengers.<\/p>\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 6px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/LzdlG-gNL6U\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div><p style=\"font-size:13px;color:#777;text-align:center;margin:0 0 24px;font-style:italic\">The 737 MAX 10, the largest member of the family, on its first flight in June 2021. The software issue could now slow its path to service. Video: Aviation International News<\/p>\r\n\r\n\r\n<p><em>Sources: The Wall Street Journal, CBS News, Bloomberg, AeroTime<\/em><\/p>\r\n\r\n\r\n<style>.mfq{margin:34px 0 8px}.mfq h2{font:26px\/1.3 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117;padding-top:22px;margin:0 0 6px}.mfq .qa details{border-top:1px solid #5C91FF;margin:0;padding:0}.mfq .qa details:last-of-type{border-bottom:1px solid #e2e7ee}.mfq .qa summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;font:18px\/1.7 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117}.mfq .qa summary::-webkit-details-marker{display:none}.mfq .qa summary::after{content:\"+\";font:24px Helvetica,sans-serif;color:#3568e0;flex:0 0 auto}.mfq .qa details[open] summary::after{content:\"\\2013\"}.mfq .qa details:hover summary{color:#3568e0}.mfq .qa .a{font:16px\/1.7 \"Gilroy regular\",Helvetica,Arial,sans-serif;color:#454e5e;padding:0 26px 24px}.mfq .qa .a a{color:#3568e0}@media(max-width:680px){.mfq .qa summary{padding:18px 14px;font-size:17px}.mfq .qa .a{padding:0 14px 20px}}<\/style>\r\n\r\n\r\n<section class=\"mfq\"><h2>Frequently Asked Questions<\/h2><div class=\"qa\"><details open><summary>What is the Boeing 737 MAX software glitch reported in September 2026?<\/summary><div class=\"a\">The 737 MAX software glitch can cause the vertical navigation function, VNAV, to disengage during a go-around after a precision approach flown on autopilot, if the crew then changes the pre-programmed flight path. The autopilot keeps flying in a simpler pitch mode, which raises pilot workload at low altitude.<\/div><\/details><details><summary>Which Boeing 737 MAX models are affected by the VNAV glitch?<\/summary><div class=\"a\">The issue sits in flight software for the Boeing 737 MAX 7 and 737 MAX 10. CBS News identified the affected versions as 14 and 14.1. Alaska, American, Southwest and United said their in-service 737 MAX fleets do not use the problematic software versions.<\/div><\/details><details><summary>Is the 737 MAX VNAV glitch dangerous?<\/summary><div class=\"a\">Boeing says existing pilot procedures allow crews to manage the situation safely, and the concern is extra workload rather than loss of control. The FAA is convening a Corrective Action Review Board to decide whether it is a safety issue and says it will act immediately if it is.<\/div><\/details><details><summary>When did Boeing first learn about the 737 MAX VNAV issue?<\/summary><div class=\"a\">According to CBS News, an airline first reported the behaviour to Boeing in November 2024. Boeing concluded in February 2025 that it was not a safety concern, but further operator information later triggered a formal safety review. Boeing informed 737 operators about a month before the Wall Street Journal report of 26 September 2026.<\/div><\/details><details><summary>Will the VNAV glitch delay the 737 MAX 7 and MAX 10?<\/summary><div class=\"a\">Boeing acknowledged the issue may delay its newest narrowbody models. The 737 MAX 7 holds its FAA type certificate and the MAX 10 is approaching final certification, with both targeted for customer deliveries in 2027. A permanent software fix planned for 2028 is being accelerated.<\/div><\/details><details><summary>What does VNAV do on an airliner?<\/summary><div class=\"a\">VNAV, or vertical navigation, is the part of the flight management system that calculates and flies the climbs and descents needed to meet altitude constraints along a programmed route. Without it the autopilot can still hold a simpler pitch mode, but the pilots must manage the vertical path themselves.<\/div><\/details><\/div><\/section>\r\n\r\n\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the Boeing 737 MAX software glitch reported in September 2026?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 737 MAX software glitch can cause the vertical navigation function, VNAV, to disengage during a go-around after a precision approach flown on autopilot, if the crew then changes the pre-programmed flight path. The autopilot keeps flying in a simpler pitch mode, which raises pilot workload at low altitude.\"}},{\"@type\":\"Question\",\"name\":\"Which Boeing 737 MAX models are affected by the VNAV glitch?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The issue sits in flight software for the Boeing 737 MAX 7 and 737 MAX 10. CBS News identified the affected versions as 14 and 14.1. Alaska, American, Southwest and United said their in-service 737 MAX fleets do not use the problematic software versions.\"}},{\"@type\":\"Question\",\"name\":\"Is the 737 MAX VNAV glitch dangerous?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Boeing says existing pilot procedures allow crews to manage the situation safely, and the concern is extra workload rather than loss of control. The FAA is convening a Corrective Action Review Board to decide whether it is a safety issue and says it will act immediately if it is.\"}},{\"@type\":\"Question\",\"name\":\"When did Boeing first learn about the 737 MAX VNAV issue?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"According to CBS News, an airline first reported the behaviour to Boeing in November 2024. Boeing concluded in February 2025 that it was not a safety concern, but further operator information later triggered a formal safety review. Boeing informed 737 operators about a month before the Wall Street Journal report of 26 September 2026.\"}},{\"@type\":\"Question\",\"name\":\"Will the VNAV glitch delay the 737 MAX 7 and MAX 10?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Boeing acknowledged the issue may delay its newest narrowbody models. The 737 MAX 7 holds its FAA type certificate and the MAX 10 is approaching final certification, with both targeted for customer deliveries in 2027. A permanent software fix planned for 2028 is being accelerated.\"}},{\"@type\":\"Question\",\"name\":\"What does VNAV do on an airliner?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"VNAV, or vertical navigation, is the part of the flight management system that calculates and flies the climbs and descents needed to meet altitude constraints along a programmed route. Without it the autopilot can still hold a simpler pitch mode, but the pilots must manage the vertical path themselves.\"}}]}<\/script><div style=\"background:#f0f4ff;border-left:4px solid #5C91FF;padding:16px 20px;margin:32px 0 8px\"><p style=\"margin:0 0 8px;font-weight:600;color:#333\">Related Posts<\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/boeing-737-max-7-faa-type-certification-2026\/\">The Smallest 737 MAX Is Finally Certified<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/lufthansa-group-20-boeing-737-max-10-order-2026\/\">Lufthansa Orders 20 Boeing 737 MAX 10 to Replace Airbus Jets<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/boeing-737-max-7-max-10-certification-flight-tests-complete\/\">Boeing&#39;s Baby and Giant 737s Pass the Test<\/a><\/p><\/div>\r\n","protected":false},"excerpt":{"rendered":"<p>Boeing has confirmed a 737 MAX 7 and MAX 10 software flaw that can drop vertical navigation during a go-around. The FAA is convening a review board.<\/p>\n","protected":false},"author":26,"featured_media":25023830,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[665,670],"tags":[],"class_list":["post-25024100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aviation-world","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug<\/title>\n<meta name=\"description\" content=\"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug\" \/>\n<meta property=\"og:description\" content=\"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/\" \/>\n<meta property=\"og:site_name\" content=\"Afterburner - MiGFlug&#039;s Magazine\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/MiGFlug\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-27T07:52:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-27T07:53:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Joseph Duncan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@migflug\" \/>\n<meta name=\"twitter:site\" content=\"@migflug\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Joseph Duncan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/\"},\"author\":{\"name\":\"Joseph Duncan\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#\\\/schema\\\/person\\\/b969321b26faa21775f0c40e141cdf85\"},\"headline\":\"Boeing 737 MAX Software Glitch: VNAV Can Drop Out in a Go-Around\",\"datePublished\":\"2026-09-27T07:52:54+00:00\",\"dateModified\":\"2026-09-27T07:53:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/\"},\"wordCount\":1241,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/09\\\/boeing-737-max-10-n27751-rollout-renton.jpg\",\"articleSection\":[\"Aviation World\",\"News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/\",\"url\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/\",\"name\":\"Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/09\\\/boeing-737-max-10-n27751-rollout-renton.jpg\",\"datePublished\":\"2026-09-27T07:52:54+00:00\",\"dateModified\":\"2026-09-27T07:53:23+00:00\",\"description\":\"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#primaryimage\",\"url\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/09\\\/boeing-737-max-10-n27751-rollout-renton.jpg\",\"contentUrl\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/09\\\/boeing-737-max-10-n27751-rollout-renton.jpg\",\"width\":1280,\"height\":720,\"caption\":\"Boeing 737 MAX 10 prototype N27751 at its November 2019 rollout\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Boeing 737 MAX Software Glitch: VNAV Can Drop Out in a Go-Around\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#website\",\"url\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/\",\"name\":\"Afterburner - MiGFlug's Magazine\",\"description\":\"for those interested in flying military jets and aviation related  topics\",\"publisher\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#organization\",\"name\":\"MiGFlug GmbH\",\"url\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/ml5psubhxdln.i.optimole.com\\\/cb:0e0_.b970\\\/w:897\\\/h:278\\\/q:mauto\\\/ig:avif\\\/https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/06\\\/MIGFLUG_LOGO-no-background.png\",\"contentUrl\":\"https:\\\/\\\/ml5psubhxdln.i.optimole.com\\\/cb:0e0_.b970\\\/w:897\\\/h:278\\\/q:mauto\\\/ig:avif\\\/https:\\\/\\\/migflug.com\\\/afterburner\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2026\\\/06\\\/MIGFLUG_LOGO-no-background.png\",\"width\":897,\"height\":278,\"caption\":\"MiGFlug GmbH\"},\"image\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/MiGFlug\\\/\",\"https:\\\/\\\/x.com\\\/migflug\",\"https:\\\/\\\/www.instagram.com\\\/migflug\\\/\",\"https:\\\/\\\/www.youtube.com\\\/user\\\/MiGFlug\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/migflug.com\\\/\",\"https:\\\/\\\/www.pinterest.ch\\\/migflug\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#\\\/schema\\\/person\\\/b969321b26faa21775f0c40e141cdf85\",\"name\":\"Joseph Duncan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g\",\"caption\":\"Joseph Duncan\"},\"description\":\"Joseph Duncan covers breaking defence news \u2014 fast, sharp dispatches on the Pentagon, procurement and the world\u2019s air forces.\",\"url\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/author\\\/josephduncan\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug","description":"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/","og_locale":"en_US","og_type":"article","og_title":"Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug","og_description":"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.","og_url":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/","og_site_name":"Afterburner - MiGFlug's Magazine","article_publisher":"https:\/\/www.facebook.com\/MiGFlug\/","article_published_time":"2026-09-27T07:52:54+00:00","article_modified_time":"2026-09-27T07:53:23+00:00","og_image":[{"width":1280,"height":720,"url":"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg","type":"image\/jpeg"}],"author":"Joseph Duncan","twitter_card":"summary_large_image","twitter_creator":"@migflug","twitter_site":"@migflug","twitter_misc":{"Written by":"Joseph Duncan","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#article","isPartOf":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/"},"author":{"name":"Joseph Duncan","@id":"https:\/\/migflug.com\/afterburner\/it\/#\/schema\/person\/b969321b26faa21775f0c40e141cdf85"},"headline":"Boeing 737 MAX Software Glitch: VNAV Can Drop Out in a Go-Around","datePublished":"2026-09-27T07:52:54+00:00","dateModified":"2026-09-27T07:53:23+00:00","mainEntityOfPage":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/"},"wordCount":1241,"commentCount":0,"publisher":{"@id":"https:\/\/migflug.com\/afterburner\/it\/#organization"},"image":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#primaryimage"},"thumbnailUrl":"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg","articleSection":["Aviation World","News"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/","url":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/","name":"Boeing 737 MAX Software Glitch: VNAV and the Go-Around | MiGFlug","isPartOf":{"@id":"https:\/\/migflug.com\/afterburner\/it\/#website"},"primaryImageOfPage":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#primaryimage"},"image":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#primaryimage"},"thumbnailUrl":"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg","datePublished":"2026-09-27T07:52:54+00:00","dateModified":"2026-09-27T07:53:23+00:00","description":"Boeing confirms a 737 MAX software glitch that can drop VNAV during a go-around on the MAX 7 and MAX 10. What it does, why the FAA is reviewing it.","breadcrumb":{"@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#primaryimage","url":"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg","contentUrl":"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/09\/boeing-737-max-10-n27751-rollout-renton.jpg","width":1280,"height":720,"caption":"Boeing 737 MAX 10 prototype N27751 at its November 2019 rollout"},{"@type":"BreadcrumbList","@id":"https:\/\/migflug.com\/afterburner\/boeing-737-max-vnav-software-glitch-go-around-faa-carb-2026\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/migflug.com\/afterburner\/it\/"},{"@type":"ListItem","position":2,"name":"Boeing 737 MAX Software Glitch: VNAV Can Drop Out in a Go-Around"}]},{"@type":"WebSite","@id":"https:\/\/migflug.com\/afterburner\/it\/#website","url":"https:\/\/migflug.com\/afterburner\/it\/","name":"Afterburner - MiGFlug's Magazine","description":"for those interested in flying military jets and aviation related  topics","publisher":{"@id":"https:\/\/migflug.com\/afterburner\/it\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/migflug.com\/afterburner\/it\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/migflug.com\/afterburner\/it\/#organization","name":"MiGFlug GmbH","url":"https:\/\/migflug.com\/afterburner\/it\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/migflug.com\/afterburner\/it\/#\/schema\/logo\/image\/","url":"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:897\/h:278\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/06\/MIGFLUG_LOGO-no-background.png","contentUrl":"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:897\/h:278\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/06\/MIGFLUG_LOGO-no-background.png","width":897,"height":278,"caption":"MiGFlug GmbH"},"image":{"@id":"https:\/\/migflug.com\/afterburner\/it\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/MiGFlug\/","https:\/\/x.com\/migflug","https:\/\/www.instagram.com\/migflug\/","https:\/\/www.youtube.com\/user\/MiGFlug","https:\/\/www.linkedin.com\/company\/migflug.com\/","https:\/\/www.pinterest.ch\/migflug\/"]},{"@type":"Person","@id":"https:\/\/migflug.com\/afterburner\/it\/#\/schema\/person\/b969321b26faa21775f0c40e141cdf85","name":"Joseph Duncan","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/cd6d4cc4c63e8c05a1f5db9308c285d6dd9753e6d076a39f8c5ed9a7d9f7c523?s=96&d=mm&r=g","caption":"Joseph Duncan"},"description":"Joseph Duncan covers breaking defence news \u2014 fast, sharp dispatches on the Pentagon, procurement and the world\u2019s air forces.","url":"https:\/\/migflug.com\/afterburner\/author\/josephduncan\/"}]}},"_links":{"self":[{"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/posts\/25024100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/comments?post=25024100"}],"version-history":[{"count":1,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/posts\/25024100\/revisions"}],"predecessor-version":[{"id":25024264,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/posts\/25024100\/revisions\/25024264"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/media\/25023830"}],"wp:attachment":[{"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/media?parent=25024100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/categories?post=25024100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/migflug.com\/afterburner\/wp-json\/wp\/v2\/tags?post=25024100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}