ATL89LA102

NTSB accident investigation · Cessna 172G · Coolidge, GA · March 11, 1989

Accident · No injuriesLimited investigationFinal report
Date
March 11, 1989, 18:20 local (23:20 UTC)
Place
Coolidge, GA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N1365FCessna 172G
Weather
Visual (VMC) · Dusk
Status
Completed · report July 9, 1990
Report
Approved by Office Director
FAA report
19890311003909A
Case key
7997

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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Probable cause

Fuel contamination of an unknown origin, failure of company maintenance personnel to locate and remove all contamination, continued operation of the aircraft by the pilot after the cause of a known engine problem was not determined, and subsequent fuel starvation. The light conditions at dusk and the soft terrain in the emergency landing area 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.

Loss of engine power(total) - nonmechanicalCruise
Fluid,fuel - contaminationCause
Maintenance,inspection - inadequateCompany maintenance personnelCause
Operation with known deficiencies in equipment - performedPilot in commandCause
Fluid,fuel - starvationCause
Forced landingDescent - emergency
Nose overLanding
Light condition - duskFactor
Terrain condition - softFactor

Analysis

The engine lost pwr during a ferry flt & a forced ldg was made in a soft field, where the airplane nosed over. A post-crash investigation revealed that the carburetor fuel-inlet filter screen was mostly blocked with a lint-like material. A microscopic exam of the material revealed that it appeared to be cloth fibers. The source of the material was not determined. Further investigation revealed that the engine had experienced repeated, intermittent pwr losses over the previous week in spite of repeated efforts by company mechanics to locate the source of the problem. According to the mechanics, contamination was found in the fuel system during those efforts; the filters were cleaned and the fuel system was flushed. The intermittent power losses occurred again. Earlier on this flt, the engine began to surge & a precautionary ldg was made. The mechanic accompanying the plt reportedly found no problems and the flt was continued. The accident occurred about 1 hr later.

Aircraft

Registration
N1365F
Reported as
Cessna 172G
Category
Airplane
Serial number
17254860
Airframe hours
4,444
Engine
Continental O-300-D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Operator
Flewellen Aviation, Inc.
Registered owner
Flewellen Aviation, Inc
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
100 hour · January 31, 1989 · 56 hours before
Departed
X31 · Crystal River, FL
Destination
ABY · Albany, GA

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
40
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,706 total · 149 in this make and model · 2,590 as pilot in command · 107 in the last 90 days · 36 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Visibility
3 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.