Update: This article provides the latest on the investigation into the Lufthansa 787 nose gear collapse at Frankfurt Airport. For our initial coverage, see Brand-New Lufthansa 787 Drops on Its Nose. Germany's Federal Bureau of Aircraft Accident Investigation (BFU) has launched a formal probe into the nose gear collapse that sent Lufthansa's nearly brand-new Boeing 787-9 Dreamliner "Herne" tipping forward onto its nose at Frankfurt Airport on 4 June. The investigation is now examining maintenance records, structural integrity, hydraulic sensor data, and ground crew procedures to determine what caused a four-month-old widebody to suffer a catastrophic landing gear failure while parked at the gate. The aircraft — registration D-ABPQ — was delivered to Lufthansa in January 2026 and entered long-haul service in February equipped with the carrier's flagship Allegris cabin product. It had been flying for under four months. The collapse occurred at approximately 12:45 local time as the aircraft was being prepared for flight LH450 to Los Angeles. No passengers were aboard; two cabin crew on the jet and several ground-handling staff were hurt.

What the BFU Is Looking At

The investigation covers four main areas. First, maintenance records: was the nose gear properly serviced since delivery, and were all post-delivery inspection requirements met? Second, structural integrity: is there a manufacturing defect in the nose gear assembly or its attachment points? Third, hydraulic and sensor data from Boeing's onboard monitoring systems: did the gear's hydraulic locks disengage unexpectedly, and if so, why? Fourth, ground procedures: was anything happening to the aircraft at the time — pushback, towing, loading — that could have placed unusual stress on the nose gear?

Boeing engineers are cooperating with the BFU and have provided data downloads from the aircraft's systems. For a jet this new, the digital trail is extensive — modern 787s record thousands of parameters continuously, which should give investigators a detailed picture of what the landing gear hydraulics were doing in the moments before the collapse.

Wider Boeing Scrutiny

The incident adds to a difficult period for Boeing. The manufacturer has faced intense scrutiny over quality control since the Alaska Airlines 737 MAX 9 door plug blowout in January 2024 and subsequent production issues. While the 787 programme has been separate from the MAX's troubles, any structural failure on a near-new widebody inevitably raises questions about manufacturing standards across Boeing's product line. For Lufthansa, the timing is particularly painful. The Allegris-equipped 787-9 fleet is the centrepiece of the carrier's long-haul premium strategy. Having one of those jets dramatically tip onto its nose at Germany's busiest airport — with photos circulating globally within hours — is a reputational headache regardless of the investigation's outcome.

What Happens Next

The BFU investigation will take months. Preliminary findings may emerge sooner if a clear mechanical cause is identified — a failed hydraulic actuator, a defective locking pin, a sensor malfunction. If the cause points to a manufacturing or design issue, Boeing could face an airworthiness directive requiring inspections across the global 787 fleet. If it proves to be an isolated incident or maintenance-related, the fallout will be contained. Either way, the image of a brand-new Dreamliner on its nose at Frankfurt is not one Boeing or Lufthansa will forget soon. The investigation will determine whether it was a freak event or a warning sign. Sources: ABC News, Aviation A2Z, Aviation24.be, Travel and Tour World