Narrative:Air Inter flight 696 departed Lyon for a night time flight to Clermont-Ferrand. It was raining in the area of Clermont-Ferrand, the visibility was around 5 miles with a low 4/8 ceiling at 2300 feet and an overcast at 8000 feet. Near Clermont-Ferrand, the crew had to fly a holding pattern before being cleared to descend to 3600 feet. Then the airplane's radio compass shifted 180-degrees, probably because electrical discharges in the rainfall blocked the signals of the Clermont-Ferrand NDB. The crew initiated their descent too early and the Viscount collided with a mountain (Pic du Picon) at 1000 feet, 44 km east of the airport.
Controlled Flight Into Terrain (CFIT) - Mountain
|Date:||Friday 27 October 1972|
Vickers 724 Viscount
|C/n / msn:|| 50|
|First flight:|| 1955|
|Crew:||Fatalities: 5 / Occupants: 5|
|Passengers:||Fatalities: 55 / Occupants: 63|
|Total:||Fatalities: 60 / Occupants: 68 |
|Airplane damage:|| Damaged beyond repair|
|Location:||4 km (2.5 mls) W of Noirétable ( France)
|Phase:|| En route (ENR)|
|Nature:||Domestic Scheduled Passenger|
|Departure airport:||Lyon-Bron Airport (LYN/LFLY), France|
|Destination airport:||Clermont-Ferrand-Aulnat Airport (CFE/LFLC), France|
Official accident investigation report
|investigating agency: ||Bureau d'Enquêtes et d'Analyses (BEA) - France |
|report status: ||Final|
|report number: ||Report f-ch721027|
|duration of investigation: || days ()|
|download report: ||
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 Lyon-Bron Airport to Clermont-Ferrand-Aulnat Airport as the crow flies is 137 km (86 miles).