Date & Time:
Jun 28, 1943 at 1835 LT
Type of aircraft:
Cessna T-50 Bobcat (AT-8/AT-17/UC-78 & Crane)
Operator:
Registration:
258495
Flight Phase:
Landing (descent or approach)
Flight Type:
Training
Survivors:
Yes
Schedule:
Biskra - Biskra
MSN:
3986
YOM:
1942
Country:
Algeria
Region:
Africa
Crew on board:
2
Crew fatalities:
0
Pax on board:
1
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
0
Circumstances:
The airplane was engaged in a local training flight at Biskra Airport, carrying one instructor, one student pilot and one passenger. After takeoff, while flying at a height of 30 metres in a flat attitude with engine power at idle, landing gear and flaps down, the student pilot believed the airplane was descending and pointed this out to the instructor that took over the controls. As he noticed that nothing seems abnormal, he transferred the controls to the student pilot who continued the approach. During the last segment, at a height of about two metres, the airplane stalled and hit the runway surface. Upon impact, the undercarriage were torn off and the airplane slid for about 50 metres before coming to rest. All three occupants escaped unhurt while the airplane was damaged beyond repair.
Crew:
Adj/C Alexandre Peres, instructor,
Sgt Gabriel Aimé Lacaze, student pilot.
Passenger:
Lt Jean Bertin.
Crew:
Adj/C Alexandre Peres, instructor,
Sgt Gabriel Aimé Lacaze, student pilot.
Passenger:
Lt Jean Bertin.
Probable cause:
The high OAT (about 40° C) likely caused an abnormal expansion of the anemometer's antenna, which in turn distorted the anemometer's reading. As a result, the speed displayed during the approach was incorrect, causing the aircraft to stall during the final segment.
