Accident description
Last updated: 22 December 2014
Status:Final
Date:Sunday 5 June 1966
Time:15:12 UTC
Type:Silhouette image of generic H25A model; specific model in this crash may look slightly different
de Havilland DH-125-1
Operator:Air Affaires
Registration: F-BKMF
C/n / msn: 25007
First flight: 1964
Total airframe hrs:798
Engines: 2 Bristol Siddeley Viper 520
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 2 / Occupants: 2
Airplane damage: Damaged beyond repair
Location:1,5 km (0.9 mls) SW off Nice-Côte d'Azur Airport (NCE) (   France) show on map
Phase: Maneuvering (MNV)
Nature:Demonstration
Departure airport:Cannes-Mandelieu Airport (CEQ/LFMD), France
Destination airport:Nice-Côte d'Azur Airport (NCE/LFMN), France
Narrative:
A de Havilland DH-125-1 corporate jet, registration F-BKMF, was destroyed when it struck the sea near Nice-Côte d'Azur Airport (NCE), France. Both pilots were killed in the accident. The airplane departed Cannes (CEQ) at 14:45 UTC and headed for Nice. The airplane would make a three fly past manoeuvres at the local Nice air show. The first fly past was performed at low height over the runway, heading 050. The crew made a right hand turn for another low pass in the opposite direction. The airplane made a right hand climbing turn to an altitude of 2000 feet. During this manoeuvre the airplane stalled and crashed in flames.

PROBABLE CAUSE: "The stresses applied to the airframe of F-BKMF during the manoeuvre carried out in order to return to the Nice runway, exceeded the design limit loads of the wing unit. A rupture was then caused to the wing unit which resulted in the leakage of a large quantity of fuel from the upper surface near the wing root. The aircraft stalled under the high load factor and the pilot was unable to regain control because of the small height margin and the damage to the aircraft structure. In spite of the considerable stick forces which have to be applied in a normally trimmed aircraft in order to carry out such a manoeuvre, the latter may have been attempted by the pilot, who was experienced, skillful and cautious, in view of the following circumstances: "tight" manoeuvre at low altitude in poor visibility; air display atmosphere (type of flying pre-supposing special training different from the training normally required for a chief pilot of the Air Affaires company); possible anxiety to avoid crossing the flight paths of several aircraft in the vicinity during the display."

Classification:
Wing failure
Loss of control

Sources:

Official accident investigation report
investigating agency: Bureau d'Enquêtes et d'Analyses (BEA) - France
report status: Final
report number:
report released:13-FEB-1968
duration of investigation:618 days (1 year 8.4 months)
download report: Rapport final de la commission d'enquete sur l'accident survenu à Nice le 5 juin 1966 au DH 125 F-BKMF (BEA )

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Cannes-Mandelieu Airport to Nice-Côte d'Azur Airport as the crow flies is 25 km (16 miles).

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