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Crash of a Canadair CL-415 in Calvi: 2 killed
Date & Time:
Aug 1, 2005 at 1005 LT
Registration:
F-ZBEO
Survivors:
No
Schedule:
Ajaccio - Ajaccio
MSN:
2011
YOM:
1995
Flight number:
Pélican 36
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
After take-off from Ajaccio Airport and a first scooping, the fleet composed of three planes with respective callsigns Pelican 44, Pelican 36 and Pelican 37 intervened on a fire at Piétramaggiore, near Calvi, Corsica, France. A first sector of the fire zone was treated by six passes. During the two following passages, the fleet dropped on another sector of the fire. Pelican 36 began its last scooping in the Gulf of Revellata at heading 250°, three minutes and fourteen seconds before the accident. At the end, it gained height and continued the circuit to arrive on the drop axis. The "doubling" action consists of releasing the water load at the precise location of the previous aircraft's release. During the last turn, it reached an altitude of 2,160 feet. Pelican 36 was observed on a trajectory estimated to be consistent by the crew of the following aircraft (Pelican 37) a few seconds before it passed over the drop site. However, video evidence shows that the track of Pelican 36 is further west than that of Pelican 44, which preceded it, and over higher terrain. One and a half seconds before the flight recorder stopped, the aircraft was in a right turn at an altitude of 1,360 feet. The angle of roll to the right and increasing was then 17°. While the elevators were nearly stable, the altitude stored by the flight recorder increased to 1,500 feet in one and a half seconds. After that the tail section of the aircraft separated from the fuselage. The aircraft then impacted the side of a mountain and broke up.
Crew:
Ludovic Piasentin, pilot,
Jean-Louis de Bénédict, copilot.
Crew:
Ludovic Piasentin, pilot,
Jean-Louis de Bénédict, copilot.
Probable cause:
Environmental area:
The load case studied during the investigations did not explain the observed fuselage failure. However, the characteristics of the upward aerological disturbance caused by the fire are likely to have generated airframe stresses of an order of magnitude close to that of the loads capable of causing the fuselage to fail. Given the uncertainties encountered during the evaluation of the parameters of the rising air column that affected the accuracy of the research results concerning the effects of the stresses on the airframe, the aerological phenomenon encountered represents a possible cause of the event.
Technical Area:
The research undertaken to find in-flight loads capable, in the context of the event, of breaking the intact fuselage without damaging the empennage was unsuccessful. Detailed observation of the airframe did not reveal any damage prior to the occurrence. However, the results of these investigations do not rule out the existence of such damage, so the hypothesis of prior damage to the airframe cannot be totally rejected.
The load case studied during the investigations did not explain the observed fuselage failure. However, the characteristics of the upward aerological disturbance caused by the fire are likely to have generated airframe stresses of an order of magnitude close to that of the loads capable of causing the fuselage to fail. Given the uncertainties encountered during the evaluation of the parameters of the rising air column that affected the accuracy of the research results concerning the effects of the stresses on the airframe, the aerological phenomenon encountered represents a possible cause of the event.
Technical Area:
The research undertaken to find in-flight loads capable, in the context of the event, of breaking the intact fuselage without damaging the empennage was unsuccessful. Detailed observation of the airframe did not reveal any damage prior to the occurrence. However, the results of these investigations do not rule out the existence of such damage, so the hypothesis of prior damage to the airframe cannot be totally rejected.
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Crash of a Grumman US-2B Tracker in Taradeau
Date & Time:
Jul 19, 2005 at 1745 LT
Registration:
F-ZBBL
Survivors:
Yes
Schedule:
Marseille - Marseille
MSN:
626
YOM:
1958
Flight number:
Pélican 19
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft departed Marseille-Marignane Airport in the afternoon and was dispatched in the area of Taradeau where a forest was on fire. Two helicopters, two others Tracker and five Canadair CL-415 were also dispatched to the same zone. The pilot was approaching the area on fire when he momentarily lost visual contact with the ground. The aircraft impacted trees and crashed, bursting into flames. The pilot escaped with minor injuries while the aircraft was destroyed by fire.
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