Narrative:
At 7000 feet, when descending towards Hill AFB, the crew got a no. 2 prop low oil warning. The engine was shut down, but the prop wouldn't feather. An emergency was declared and the aircraft landed on runway 32. During the ground roll, the no. 2 prop separated. Pieces ruptured the no. 1 fuel tank. This caused an explosion and a fire on the left side of the Electra. The aircraft came to rest 4000 feet from the runway threshold.
PROBABLE CAUSE(S)
powerplant - propeller system: other
miscellaneous acts,conditions - pressure too low
pilot in command - improper in-flight decisions or planning
pilot in command - inadequate supervision of flight
personnel - flight engineer: improper use of equipment
miscellaneous acts,conditions - improper emergency procedures
FACTOR(S)
miscellaneous acts,conditions - fire in engine
| Status: | Accident investigation report completed and information captured |
| Date: | Sunday 19 March 1972 |
| Time: | 00:07 |
| Type: |  Lockheed L-188CF Electra |
| Operator: | Universal Airlines |
| Registration: | N851U |
| MSN: | 2001 |
| First flight: | 1959-06-06 (12 years 10 months) |
| Crew: | Fatalities: 0 / Occupants: 3 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Damaged beyond repair |
| Location: | Ogden-Hill AFB, UT (HIF) ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Ferry/positioning |
| Departure airport: | Tucson (unknown airport), AZ, United States of America |
| ? |
At 7000 feet, when descending towards Hill AFB, the crew got a no. 2 prop low oil warning. The engine was shut down, but the prop wouldn't feather. An emergency was declared and the aircraft landed on runway 32. During the ground roll, the no. 2 prop separated. Pieces ruptured the no. 1 fuel tank. This caused an explosion and a fire on the left side of the Electra. The aircraft came to rest 4000 feet from the runway threshold.
Probable Cause:
PROBABLE CAUSE(S)
powerplant - propeller system: other
miscellaneous acts,conditions - pressure too low
pilot in command - improper in-flight decisions or planning
pilot in command - inadequate supervision of flight
personnel - flight engineer: improper use of equipment
miscellaneous acts,conditions - improper emergency procedures
FACTOR(S)
miscellaneous acts,conditions - fire in engine
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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