ASN Wikibase Occurrence # 343231
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| Date: | Monday 10 January 2011 |
| Time: | |
| Type: |  Boeing 737-33AQC |
| Owner/operator: | Europe Airpost |
| Registration: | F-GIXD |
| MSN: | 25744/2198 |
| Year of manufacture: | 1991 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | None |
| Category: | Incident |
| Location: | Montpellier -
 France
|
| Phase: | Take off |
| Nature: | Ferry/positioning |
| Departure airport: | Montpellier-Méditerranée Airport (MPL/LFMT) |
| Toulouse-Blagnac Airport (TLS/LFBO) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
The crew took off from Montpellier runway 31R for a ferry flight bound for Toulouse-Blagnac. During rotation, the leading edge slats deployed from the intermediate position to the fully extended position. The left stick shaker activated immediately. The captain noticed an erroneous indication on the speed tape of his PFD. He observed no anomaly on the co-pilot's PFD, on the standby indicator and on the engine indicators. The slats returned to their initial position. Twelve seconds after being triggered, the stick shaker stopped. After analyzing the behavior of the systems, the crew decided to continue the flight to destination.
Conclusion
The triggering of the stick shaker when the aircraft rotated was due to the left angle of attack sensor being blocked by paint. The presence of paint results from inappropriate masking of the probe during the application of the paint. The post-site visit did not detect this anomaly.
Rules of the trade alone are not enough to guarantee safe painting operations. Indeed, the lack of a systematic procedure by aeronautical manufacturers, in terms of protection of external sensors during painting activities, and verification of their proper functioning at the end of the work, does not make it possible to ensure that these operations are take place in an adequate and homogeneous manner according to the workshops. Moreover, the training requirements relating to specialized personnel do not guarantee that the latter are aware of the potential impact of their activity on flight safety.
Accident investigation:
 |
|
Sources:
https://bea.aero/en/investigation-reports/notified-events/detail/activation-du-vibreur-de-manche-lors-de-la-rotation/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Aug-2023 16:45 | harro | Added |
Corrections or additions? ... Edit this accident description
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