ASN Wikibase Occurrence # 180533
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Date: | Monday 24 October 2011 |
Time: | |
Type: | Boeing 737-8AS (WL) |
Owner/operator: | Ryanair |
Registration: | EI-DPA |
MSN: | 33602/2109 |
Year of manufacture: | 2006 |
Fatalities: | Fatalities: 0 / Occupants: 151 |
Aircraft damage: | Minor |
Category: | Serious incident |
Location: | Faro Airport (FAO/LPFR) -
Portugal
|
Phase: | Initial climb |
Nature: | Passenger - Scheduled |
Departure airport: | Faro Airport (FAO/LPFR) |
Destination airport: | Beauvais Airport (LFOB) |
Investigating agency: | AAIU |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:During the early hours of 24 October 2011, Faro Airport (FAO/LPFR), Portugal, was struck by a rare meteorological phenomenon known as a microburst associated with a supercell, during which wind speeds of up to 84.9 kts were recorded at a weather station at the airport. EI-DPA, which was parked overnight on the ramp, jumped its chocks and its nose moved approximately 5 metres to the left. During the event, the aircraft sustained significant damage to its rudder system due to the effects of the wind gusts on the rudder control surface. The damage was not visible from the ground and was not detected during the subsequent Ramp-1 Check and pre-flight checks. Later that day, the aircraft departed on its first scheduled flight and the flight crew encountered significant control difficulties immediately after take-off due to the damaged rudder system. The flight crew dealt with the control issues and returned to Faro Airport where they landed safely approximately 28 minutes after take-off.
Probable Cause:
Undetected structural damage caused to the rudder system of EI-DPA by violent wind gusts associated with a microburst, while the aircraft was parked.
Contributory Causes:
1. The speed of the wind gusts at LPFR considerably exceeded the figure of 65 kts specified in FAR 25.415 Amendment 25-91.
2. The absence of a requirement in the AMM to comprehensively check the flight control systems of an aircraft which has been subjected to an extreme meteorological event.
Accident investigation:
|
| |
Investigating agency: | AAIU |
Report number: | |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
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Sources:
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
19-Oct-2015 19:32 |
harro |
Added |
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