ASN Wikibase Occurrence # 224219
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| Date: | Saturday 29 April 2017 |
| Time: | 10:40 UTC |
| Type: |  Boeing 787-9 Dreamliner |
| Owner/operator: | British Airways |
| Registration: | G-ZBKF |
| MSN: | 38622/392 |
| Year of manufacture: | 2016 |
| Engine model: | Rolls-Royce Trent 1000-J2 |
| Fatalities: | Fatalities: 0 / Occupants: 137 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | east of Brussels -
 Belgium
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | London-Heathrow Airport (LHR/EGLL) |
| Delhi-Indira Gandhi International Airport (DEL/VIDP) | |
| Investigating agency: | AAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The aircraft was on a scheduled flight BA143 from London Heathrow to New Delhi, India. The aircraft was dispatched in accordance with the Minimum Equipment List (MEL) with the left air conditioning (AC) system disabled. Shortly after reaching FL350 the crew were alerted by EICAS that the cabin altitude was increasing above normal, triggered at 8,500 feet. With no additional Environmental control system (ECS) actions available to control cabin altitude, the flight crew initiated a descent. During this descent the cabin altitude exceeded 10,000 ft and the crew completed the relevant emergency actions.
The loss of cabin pressurisation was caused by detachment of the lower right air conditioning recirculation fan duct on a sector where the left air conditioning system had been disabled before flight. As a consequence of this finding, the Aircraft Maintenance Manual has been amended to alter the process of replacing the relevant recirculation fan and maintenance procedures to react to a related Maintenance Alert Message have been altered.
Accident investigation:
 |
|
Sources:
AAIB
History of this aircraft
Other occurrences involving this aircraft
| 1 October 2020 | G-ZBKF | British Airways | 0 | near Bristol, Gloucestershire, en route Miami-London |  |
non |
| Litium battery thermal event | ||||||
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Apr-2019 11:49 | harro | Added |
| 22-Apr-2019 11:50 | harro | Updated [Cn] |
Corrections or additions? ... Edit this accident description
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