Status: | Accident investigation report completed and information captured |
Datum: | vrijdag 7 oktober 2005 |
Tijd: | 18:22 |
Type: | de Havilland Canada DHC-8-311Q Dash 8 |
Luchtvaartmaatschappij: | British Airways Citiexpress |
Registratie: | G-BRYW |
Constructienummer: | 474 |
Bouwjaar: | 1997-06-14 (8 years 4 months) |
Motoren: | 2 Pratt & Whitney Canada PW123 |
Bemanning: | slachtoffers: 0 / inzittenden: 4 |
Passagiers: | slachtoffers: 0 / inzittenden: 50 |
Totaal: | slachtoffers: 0 / inzittenden: 54 |
Schade: | Groot |
Gevolgen: | Repaired |
Plaats: | Aberdeen-Dyce Airport (ABZ) ( Verenigd Koninkrijk)
|
Fase: | Geparkeerd (STD) |
Soort vlucht: | Binnenlandse lijnvlucht |
Vliegveld van vertrek: | Aberdeen-Dyce Airport (ABZ/EGPD), Verenigd Koninkrijk |
Vliegveld van aankomst: | ? |
Beschrijving:The DHC-8 aircraft was parked on Stand 8 at Aberdeen Airport, U.K. All the passengers were on board and the engines had been started. Shortly after the Ground Power Unit (GPU) cables had been disconnected from the aircraft, and with nobody in the
cab, the GPU moved forward and struck the rotating propeller on the right engine before coming to rest against the fuselage. All the occupants exited the aircraft through the passenger door and no one was injured.
The right propeller had suffered significant damage to all four blades and to its hub. The right engine had come to an abrupt halt and, as a result, the engine required a complete overhaul.
Also, there was a dent in the fuselage with associated local damage to the fuselage structure.
Probable Cause:
Conclusions:
The incident occurred because the GPU was being operated with a worn ball joint on the governor rod, a worn fuel pump spring and a worn gate in the forward-neutral-reverse selector.
These three mechanical defects are attributed to:
a) Inadequacies in the operator's maintenance system, including defect reporting.
b) The lack of appropriate checks in the manufacturer's recommended servicing schedule
Accident investigation:
|
Investigating agency: | AAIB (U.K.) |
Status: | Investigation completed |
Duration: | 1 year | Accident number: | EW/C2005/10/02 | Download report: | Final report
|
|
Veiligheidsmaatregelen
AAIB issued 3 Safety Recommendations
Issued: -- | To: British Airways | 2006-092 |
It is recommended that British Airways review their operations at Aberdeen Airport to ensure that airside vehicles are maintained in accordance with the appropriate manufacturers recommended servicing schedule and to ensure that their defect reporting system for ground vehicles operates effectively. (Accepted - Closed) |
Issued: -- | To: Houchin Aerospace | 2006-093 |
It is recommended that Houchin Aerospace update their recommended servicing schedule to include checks for governor rods, fuel pump springs and forward-neutral reverse selectors at appropriate intervals. These changes should be promulgated to all operators of relevant equipment world-wide. |
Issued: -- | To: Houchin Aerospace | 2006-094 |
It is recommended that Houchin Aerospace review the design of their engine control systems for self-propelled ground equipment to ensure that safety is not compromised if there is a system failure. |
Show all...
Foto's
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.