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| Date: | Thursday 17 November 2022 |
| Time: | 17:47 UTC |
| Type: |  Airbus A319-111 |
| Owner/operator: | easyJet UK |
| Registration: | G-EZBV |
| MSN: | 3122 |
| Year of manufacture: | 2007 |
| Engine model: | CFMI CFM56-5B5/P |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | NW of Sofia -
 Bulgaria
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Sofia-Vrazhdebna Airport (SOF/LBSF) |
| London-Gatwick Airport (LGW/EGKK) | |
| Investigating agency: | AAIU Bulgaria |
| Confidence Rating: |  Accident investigation report completed and information captured |
EasyJet UK flight U29002, an Airbus A319-111, was performing a ferry flight after a 16 YR-check base maintenance from Sofia (Bulgaria) to London/Gatwick with two people on board. During the climb out phase shortly after take-off, approximately 10 min after departure, at FL290 a message Cabin Altitude Warning is appeared on ECAM. The pilots levelling off around FL300 and donned their oxygen masks. The cabin altitude was rising rapidly to about 9000 ft resulting in low cabin pressure, they declared "MAYDAY" and made the decision to return to Sofia.
The flight crew set squawk 7700 on the transponder and initiated an emergency descent. During the descent the cabin pressure slowly recovered and at 10500 ft reached normal values. The aircraft landed safely on runway 27. There were no consequences for the flight crew.
Causes
Based on the analysis performed, the Commission points out that the serious incident resulted from the following causes:
Root cause:
Disruption of the technological process of the installation of the aft cargo door pressure seal during the base maintenance activities by the maintenance crew of Lufthansa Technik Sofia, which resulted in a significant cabin leakage.
Accident investigation:
 |
|
Sources:
AAIU Bulgaria
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Jun-2024 08:37 | ASN | Added |
| 11-Jun-2024 08:37 | ASN | Updated |
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