ASN Wikibase Occurrence # 181590
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| Date: | Sunday 7 September 2003 |
| Time: | 18:05 UTC |
| Type: |  Boeing 757-236 |
| Owner/operator: | British Airways |
| Registration: | G-CPER |
| MSN: | 29113/784 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Minor |
| Location: | near London Heathrow Airport -
 United Kingdom
|
| Phase: | Initial climb |
| Nature: | Passenger - Scheduled |
| Departure airport: | London Heathrow Airport (LHR/EGLL) |
| Paris-Charles DeGaulle (CDG/LFPG) | |
| Investigating agency: | AAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
This serious incident occurred on the first flight following a 26-day major maintenance check. Shortly after takeoff on a scheduled passenger flight from London Heathrow to Paris, a hot oil smell, that had been present in the cockpit on engine startup, returned. The flight crew donned oxygen masks and immediately diverted to London Gatwick Airport. During the autopilot-coupled ILS approach to Gatwick, the aircraft drifted to the right of the localiser after selection of Flap 30. When the autopilot was disconnected, a large amount of manual left roll control was needed to prevent the aircraft from turning to the right. It was necessary to maintain this control input until touch down. The aircraft landed safely despite these difficulties, with no injuries to any of the passengers or crew.
The investigation determined that the incident had been caused by maintenance errors that had culminated in the failure to reinstall two access panels, 666AR and 666BR, on the right-hand outboard flap and incorrect procedures being used to service the engine oils. The events were the result of a combination of errors on the part of the individuals involved and systemic issues, that had greatly increased the probability of such errors being committed.
The following immediate causal factors were identified:
The tasks of refitting the panels to the right wing and correctly certifying for the work carried out were not performed to the required airworthiness standard
Ineffective supervision of maintenance staff had allowed working practices to develop that had compromised the level of airworthiness control and had become accepted as the ‘norm’.
There was a culture, both on the ramp and in the maintenance hangar, which was not effective in ensuring that maintenance staff operated within the scope of their company authorisation and in accordance with approved instructions.
The maintenance planning and task instructions, relating to oil servicing on the Boeing 757 fleet, were inappropriate and did not ensure compliance with the approved instructions.
The Airline’s Quality Assurance Programme was not effective in highlighting these unsatisfactory maintenance practices.
Eight safety recommendations are made in this report, with the intention of preventing similar incidents in the future.
Accident investigation:
 |
|
Sources:
https://www.gov.uk/aaib-reports/aar-3-2005-boeing-757-236-g-cper-7-september-2003
https://www.pprune.org/engineers-technicians/202377-scathing-report-ba-maintenance-practices.html
https://publicapps.caa.co.uk/modalapplication.aspx?catid=1&pagetype=65&appid=11&mode=detail&id=2082
Media:
British Airways Boeing 757-236, G-CPER at London Heathrow (LHR) on 02.10.2002
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Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Nov-2015 21:30 | Aerossurance | Added |
| 28-Jul-2016 21:50 | Dr.John Smith | Updated [Time, Location, Departure airport, Destination airport, Source, Embed code] |
| 03-Feb-2019 15:22 | Aerossurance | Updated [Location, Source] |
| 03-Feb-2019 15:28 | Aerossurance | Updated [Time, Destination airport, Source, Narrative] |
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