DEN89LA030

NTSB accident investigation · Cessna 172 · Riverton, WY · November 13, 1988

Accident · No injuriesLimited investigationFinal report
Date
November 13, 1988, 16:30 local (23:30 UTC)
Place
Riverton, WY
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8045BCessna 172
Weather
Visual (VMC) · Day
Status
Completed · report November 24, 1989
Report
Approved by Office Director
FAA report
19881113050449A
Case key
17640

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Analysis

The instructor reported closing the throttle to simulate an engine failure, during a training flight. The student added carburetor heat first, instead of establishing a proper glide. The instructor removed carburetor heat and advised the student of the desired sequence. The instructor added carb heat, opened the throttle slightly, and cleared the engine during descent. The student selected a field for the simulated forced landing. The instructor added power to recover at 300 ft AGL. The engine accelerated to partial power then 'cut out.' The instructor tried twice more to restore full power to no avail. A forced landing was made in a beet field, 10 miles southwest of the destination. At touchdown, the nose wheel hit a ditch and was sheared off. The acft traveled 200 feet, nosed over and came to rest inverted. A post accident engine run by an FAA inspector failed to reveal evidence to explain the reported loss of power. The temp was 41, and the dew point was 27.

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.

Loss of engine power(total) - nonmechanicalDescent - normal
Weather condition - carburetor icing conditionsFactor
Fuel system,carburetor - iceCause
Remedial action - delayedPilot in command(cfi)Factor
Supervision - improperPilot in command(cfi)Cause
Carburetor heat - improper use ofPilot in command(cfi)Cause
Forced landingDescent - emergency
Nose gear collapsedLanding - flare/touchdown
Terrain condition - ditchFactor
Nose overLanding - roll

Aircraft

Registration
N8045B
Reported as
Cessna 172
Category
Airplane
Serial number
29845
Airframe hours
2,226
Engine
Continental O-300-A, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Britt, Timothy J., Jr.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 4, 1988 · 84 hours before
Departed
LND · Lander, WY
Destination
RIW · Riverton, WY

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
39
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
1,147 total · 100 in this make and model · 991 as pilot in command · 33 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
40 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
RIW, 10 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.