Full Breakdown
Munich Takeoff Incident: Brakes Applied During Acceleration
By Drooid · · How we work
Background & Context
On August 15, 2026, a Vietnam Airlines Boeing 787-9 Dreamliner (VN-A867) attempted a nonstop departure from Munich Airport’s Runway 08R bound for Hanoi. The aircraft carried 271 passengers and 16 crew members. The flight followed a successful Hanoi-to-Munich service on August 14.
Flight Data and Aircraft Performance
The German Federal Bureau of Aircraft Accident Investigation (BFU) reports the aircraft weighed ?240 t at take-off, with 62 t of fuel. Calculated speeds were V1 = 169 kt, Vr = 175 kt, V2 = 180 kt.
During the roll, the Enhanced Airborne Flight Recorder logged simultaneous brake inputs from the captain’s left-seat controls: the left Brake System Control Unit (BSCU) showed a maximum brake command of 27 %, the right BSCU 17 %, with pedal deflection peaking at 7.2° of a possible 12.5°. Thrust rose from 100 % to 101 % N1.
At 11:57 UTC, rotation began at 163 kt, 12 kt below Vr. The aircraft lifted off beyond the runway threshold, triggering stall-protection and slat deployment. V2 = 180 kt was not reached until the aircraft was at a radio altitude of 76 ft.
Damage Assessment and Immediate Aftermath
The low-speed lift-off caused the tail and main gear to strike the runway-approach lighting system, destroying 20 light fixtures and damaging all four tires on the left main gear. After jettisoning roughly 62 t of fuel, the Dreamliner returned and landed safely. No injuries occurred among the 287 occupants. Inspections revealed fuselage damage to the lower rear section and scarring from the lighting stanchions. The aircraft remains grounded for repairs.
Investigation Status and Open Questions
The BFU has impounded the aircraft’s Brake System Control Units and Electric Brake Actuator Controllers for forensic analysis. Its interim report (September 28) states the cause of the simultaneous acceleration and braking commands is “under active investigation.” Possible explanations include a mechanical malfunction, an electronic control fault, or inadvertent foot pressure on the brake pedals during rudder adjustments. The cockpit audio recording was overwritten, limiting insight into crew actions. Vietnam Airlines did not respond to requests for comment.
Conflicting Reports & Gaps
Sources agree the brake inputs originated from the captain’s side but differ on intent. SimpleFlying notes the captain’s left-seat brake pedals were activated twice; Straitstimes highlights the lack of a definitive cause and the possibility of a technical issue. No evidence currently confirms pilot error or a specific hardware defect.
What’s Next
The BFU’s forensic examination will determine whether a hardware fault or software anomaly contributed to the incident. Findings will feed into safety recommendations for Boeing 787-9 operations. Vietnam Airlines has not set a timeline for returning the aircraft to service, and passengers from the cancelled flight have been rebooked onto alternative services.