ASN logo
Last updated: 17 January 2022
Status:Schlussbericht
Datum:Samstag 2 September 1978
Zeit:17:42
Flugzeugtyp:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 200
Fluggesellschaft:Airwest Airlines
Kennzeichen: C-FAIV
Werknummer: 215
Baujahr: 1969
Triebwerk: 2 Pratt & Whitney Canada PT6A-20
Besatzung:Todesopfer: 2 / Insassen: 2
Fluggäste:Todesopfer: 9 / Insassen: 11
Gesamt:Todesopfer: 11 / Insassen: 13
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Vancouver-Coal Harbour SPB, BC (CXH) (   Kanada)
Flugphase: Annäherung (APR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Victoria Harbour, BC, Kanada
Flug nach:Vancouver-Coal Harbour SPB, BC (CXH/CYHC), Kanada
Unfallbericht:
The float-equipped Twin Otter passenger plane departed Victoria Harbour at 17:18 for a 20-minute flight to Vancouver Harbour water aerodrome (CXH). At 175 feet, while on final approach, a loud noise was heard. The aircraft yawed to the left and plunged into the harbour in a left-wing and nose-down attitude, 2500 feet short of the landing area.

Probable Cause:

PROBABLE CAUSE: In-flight failure of the left-hand inboard flap control rod that led to a sudden retraction of the complete left-hand flap system and sudden loss of control. The inboard span-wise push-pull flap control rod (inboard bell-crank to inboard rod) was severely stress-corroded and had at least three longitudinal cracks; the rod had separated from its inboard fitting.

Informationsquelle:
» CASB Final Report
» ICAO Circular 166-AN/105 (101-115)


Fotos

photo of DHC-6-Twin-Otter-200-C-FAIV
accident date: 02-09-1978
type: de Havilland Canada DHC-6 Twin Otter 200
registration: C-FAIV
 
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
languages: languages

Share