Cessna 150 N66315

Summary

On 13 July 1992 at about 22:29 local time, a Cessna 150 registered N66315, operated by Gates, Robert L., was involved in an accident near Ft. Collins, Colorado, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

13 July 1992 at 22:29

Classification

Accident

Location

Ft. Collins, Colorado, United States

Coordinates

Not recorded

Aircraft

Cessna 150

Registration

N66315

Category

Airplane

Engines

1

Operator

Gates, Robert L.

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

DEN92LA073

2 people had minor injuries.

IMPROPER RATE OF DESCENT AND LACK OF FLARE WHILE CONDUCTING A FORCED LANDING. FACTORS WERE: PARTIAL POWER LOSS DUE TO STUCK EXHAUST VALVES CAUSED BY ENGINE OVERHEAT FROM IMPROPER LEANING.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

FOLLOWING TAKEOFF, WHILE CONDUCTING A LOCAL TRAINING FLIGHT, THE ENGINE BEGAN TO RUN ROUGH AT AN ALTITUDE OF APPROXIMATELY 300 FEET AGL. THE FLIGHT INSTRUCTOR TOOK CONTROL AND CONDUCTED A FORCED LANDING IN A FIELD. TOUCH DOWN WAS HARD AND THE AIRCRAFT NOSED OVER. EXAMINATION OF THE ENGINE REVEALED TWO CYLINDERS WITH EXHAUST VALVES STUCK OPEN. EVIDENCE OF OVERHEAT WAS PRESENT AND ALL ENGINE COOLING DEVICES WERE PROPERLY IN PLACE. THE OPERATOR HAD BRIEFED ALL HIS INSTRUCTORS ON LEANING TO PEAK POWER DUE TO HIGH ALTITUDE PERFORMANCE DEGRADATION.

Quoted verbatim from the NTSB record.