Date: | 12-FEB-2020 |
Time: | 08:57 UTC |
Type: | Airbus A220-300 |
Owner/operator: | Air Baltic |
Registration: | YL-AAU |
C/n / msn: | 55064 |
Fatalities: | Fatalities: 0 / Occupants: |
Other fatalities: | 0 |
Aircraft damage: | Unknown |
Category: | Serious incident |
Location: | south of Bordeaux - France |
Phase: | En route |
Nature: | International Scheduled Passenger |
Departure airport: | Riga International Airport (RIX/EVRA) |
Málaga Airport (AGP/LEMG) | |
Investigating agency: | NTSB |
Air Baltic flight BT677, an Airbus A220-300, suffered a failure of the no.1 PW1521G engine en route between Riga, Latvia, and Málaga, Spain.
The aircraft had just completed an en-route climb from FL370 to FL390 when the engine failed. The flight crew turned back towards Bordeaux and declared an emergency. A safe landing was carried out at Bordeaux–Mérignac Airport (BOD/LFBD) 09:28 UTC.
BEA France reported that it was delegating the investigation of this serious incident to the NTSB given the similarities with other occurrences.
These three occurrences involved inflight shutdowns due to failure of the low-pressure compressor (LPC) stage 1 rotor, which resulted in the rotor disk releasing from the LPC case and damaging the engine.
As an interim measure Transport Canada issued an Airworthiness Directive on October 26, 2019, introducing a new Aircraft Flight Manual (AFM) limitation and normal procedure to limit the engine N1 setting to 94% while above 29000 feet.
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