Narrative:
The Canadair CL-44 transport plane was engaged in transporting 27 250-gallon fuel tanks to an oil-drilling site at West Kuparuk, Alaska. On the return leg to Anchorage, Alaska, the flight was cleared to land on runway 06L. Upon touchdown the right hand undercarriage beam bogie snapped. The right wing and no. 3 and 4 engines struck the runway. The plane swerved to the right onto the grass, during which the right wing broke off. A fire had erupted but all four occupants managed to escape.
It appeared that the co-pilot, who was conducting the landing, didn't level off correctly and supervision by the captain was inadequate.
PROBABLE CAUSE:
copilot - improper level off
pilot in command - inadequate supervision of flight
FACTORS:
miscellaneous acts,conditions - pilot fatigue
miscellaneous acts,conditions - seat belt not fastened
miscellaneous acts,conditions - overload failure
Heavy landing
Runway mishap
» NTSB
| Status: | Accident investigation report completed and information captured |
| Date: | Thursday 1 May 1969 |
| Time: | 08:11 |
| Type: |  Canadair CL-44D4-2 |
| Operator: | Mobil Oil |
| Registration: | N446T |
| MSN: | 15 |
| First flight: | 1962-01-24 (7 years 3 months) |
| Engines: | 4 Rolls-Royce Tyne 515 |
| Crew: | Fatalities: 0 / Occupants: 3 |
| Passengers: | Fatalities: 0 / Occupants: 1 |
| Total: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Damaged beyond repair |
| Location: | Anchorage International Airport, AK (ANC) ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Cargo |
| Departure airport: | West Kuparuk, AK (XPU), United States of America |
| Anchorage International Airport, AK (ANC/PANC), United States of America | |
| Flightnumber: | 109 |
The Canadair CL-44 transport plane was engaged in transporting 27 250-gallon fuel tanks to an oil-drilling site at West Kuparuk, Alaska. On the return leg to Anchorage, Alaska, the flight was cleared to land on runway 06L. Upon touchdown the right hand undercarriage beam bogie snapped. The right wing and no. 3 and 4 engines struck the runway. The plane swerved to the right onto the grass, during which the right wing broke off. A fire had erupted but all four occupants managed to escape.
It appeared that the co-pilot, who was conducting the landing, didn't level off correctly and supervision by the captain was inadequate.
Probable Cause:
PROBABLE CAUSE:
copilot - improper level off
pilot in command - inadequate supervision of flight
FACTORS:
miscellaneous acts,conditions - pilot fatigue
miscellaneous acts,conditions - seat belt not fastened
miscellaneous acts,conditions - overload failure
Classification:
Insufficient rest / fatigueHeavy landing
Runway mishap
Sources:
» Runway / by John Godson, 1973» NTSB
Photos
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.
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