- Date
- August 23, 1992, 15:30 local (23:30 UTC)
- Place
- Wasilla, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N77073Cessna 140
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 28, 1993
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19920823032879A
- Case key
- 5788
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 NTSB’s determination of the probable cause, and any contributing factors.
The partial loss of engine power due to the separation of the right hand exhaust stack. Contributing to the accident was the unsuitable terrain on which the forced landing was made.
Analysis
During cruise flight the pilot experienced a partial loss of engine power, and made an off airport forced landing, which resulted in substantial damage to the airplane. Examination found that a piece of the right hand exhaust stack had separated at the confluence of the carburetor heat extraction area. The engine operated normally following the accident.
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.
Aircraft
- Registration
- N77073
- Reported as
- Cessna 140
- Category
- Airplane
- Serial number
- 11527
- Airframe hours
- 2,700
- Engine
- Lycoming O-290-D, 125 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- William H. Hall
- Registered owner
- William H. Hall
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · October 5, 1991 · 1 hours before
- Departed
- Z16 · Wasilla, AK
- Destination
- Wick'S Airstrip, 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
- 47
- Certificate
- Private
- Airplane ratings
- Multi-engine land, Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 588 total · 1 in this make and model · 534 as pilot in command · 1 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- 5,000 ft broken
- Temperature
- 61 °F, dew point 55 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N77073 · 1
Matched to the same aircraft by N-number and date.