ASN Wikibase Occurrence # 230748
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| Date: | Friday 22 June 2018 |
| Time: | 13:35 |
| Type: |  Mudry CAP 10B |
| Owner/operator: | Marine nationale |
| Registration: | 111-F-YSDC |
| MSN: | 111 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Base d’aéronautique navale de Lanvéoc-Poulmic -
 France
|
| Phase: | Taxi |
| Nature: | Military |
| Departure airport: | BAN Lanvéoc-Poulmic |
| BAN Lanvéoc-Poulmic | |
| Investigating agency: | BEA-E |
| Confidence Rating: |  Accident investigation report completed and information captured |
An instructor and a student pilot were scheduled to complete a series of circuits as part of an in-flight selection mission. During the taxi to reach the threshold of runway 05, the student encountered difficulties in maintaining the taxiway axis. The instructor took over the controls and directed the aircraft to the holding point. Detecting a burning smell and smoke, the instructor decided to cancel the takeoff and return to the parking lot via the runway. After a few metres, a fire broke out. The instructor ordered the evacuation.
The rescue team intervened and managed to put out the fire. The aircraft was heavily damaged. The crew is unharmed.
3.2 Causes of the event
The following elements contributed to the event:
- the trivialization of brake problems leading to a lack of feedback;
- the non-application of the service bulletin leading to the retention of old master cylinders on CAP 10Bs;
- the accumulation of several anomalies in the brake system leading to the maintenance of residual brake pressure on the left and the absence of criteria for judging the wear of the master cylinders and brake blocks;
- the absence of removal and inspection of the stop part, forgotten by the two maintenance organizations;
- the instructor continues to drive the vehicle even though his left brake pedal is very soft;
- the rudder deflection opposite the expected position not identified by the crew;
- the wheel fairing to increase the temperature around the brake block;
- the brake fluid piping material is not resistant to temperature rise and causes hydraulic fluid to leak as it melts;
- the brake fluid and materials used in the composition of the wheel fairing, which are highly flammable;
- the instructor's failure to apply the "floor smoke" checklist;
- the wind promoting the spread of the fire to the airframe and aft of the fuselage.
Accident investigation:
 |
|
Sources:
BEA-É
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Nov-2019 15:41 | harro | Added |
| 18-Nov-2019 15:44 | harro | Updated [Aircraft type, Registration, Accident report, ] |
Corrections or additions? ... Edit this accident description
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