- Date
- May 23, 1990, 10:00 local (18:00 UTC)
- Place
- Palmer, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Other
- Aircraft
- N66425Cessna 150
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 28, 1992
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19900523017149A
- Case key
- 5369
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The flight instructor's failure to use carburetor heat during a simulated engine failure. The rough terrain and weather conditions conducive to carburetor icing were contributing factors.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
Power was reduced at 1,000-1,200 ft AGL for a simulated engine failure. Power was then added for recovery at 150 ft AGL but the engine did not respond. The airplane nosed over in a freshly plowed field. The temp/dew point was 45/32. The CFI stated that he thought the outside air temp at the time was 55-60 deg and that the use of carb heat was not warranted for the maneuver.
Aircraft
- Registration
- N66425
- Reported as
- Cessna 150
- Category
- Airplane
- Serial number
- 15076039
- Airframe hours
- 3,351
- Engine
- Continental O-200-A, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Nugget Aviation
- Registered owner
- Thomas A Bishop
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · May 19, 1990 · 5 hours before
- Departed
- PAQ · Palmer, AK
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 22
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 348 total · 33 in this make and model · 283 as pilot in command · 26 in the last 90 days · 14 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 10° at 6 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- 12,000 ft broken
- Temperature
- 45 °F, dew point 30 °F
- Altimeter
- 29.00 inHg
- Observed at
- PAQ, 4 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.