Status:	Final
Date:	01 MAY 1969
Time:	08:11
Type:	Canadair CL-44D4-2
Operator:	Mobil Oil
Registration:	N446TW
C/n / msn:	15
First flight:	1962
Crew:	Fatalities: 0 / Occupants: 3
Passengers:	Fatalities: 0 / Occupants: 1
Total:	Fatalities: 0 / Occupants: 4
Airplane damage:	Written off
Airplane fate:	Written off (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
Destination airport:	Anchorage International Airport, AK (ANC/PANC), United States of America

Narrative:
Undercarriage collapse after heavy landing. The co-pilot 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

Sources:
» NTSB