FTW94LA317

NTSB accident investigation · Cessna 172B · Poteau, OK · September 28, 1994

Accident · No injuriesLimited investigationFinal report
Date
September 28, 1994, 12:36 local (17:36 UTC)
Place
Poteau, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7617XCessna 172B
Weather
Visual (VMC) · Day
Status
Completed · report January 26, 1995
Report
Approved by Office Director
FAA report
19940928032149A
Case key
19175

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

The loss of engine power due to the pilot's delayed use of carburetor heat and the resultant carburetor icing. Factors were the weather condition and the lack of suitable terrain for the forced landing.

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
Weather condition - carburetor icing conditionsFactor
Fuel system,carburetor - iceCause
Carburetor heat - delayedPilot in commandCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll
Terrain condition - none suitableFactor
Terrain condition - rough/uneven
Object - fence
Object - fence post

Analysis

The flight was at cruise power at 3,000 feet MSL for 1.1 hours when a power loss occurred. The pilot pushed the mixture in and applied carburetor heat. Power was not restored to the engine. A forced landing was made to a field. During the landing roll in the rough and uneven terrain, the airplane hit fences and posts. Temperature was 80 degrees fahrenheit and dew point was 60 degrees fahrenheit. The icing probability chart indicates moderate icing at cruise power.

Factual narrative

On September 28, 1994, at 1236 central daylight time, a Cessna 172B, N7617X, was substantially damaged during a forced landing near Poteau, Oklahoma. The airplane was flown by a private pilot on a local personal flight. No flight plan was filed and visual meteorological conditions prevailed. The pilot was uninjured.

According to the enclosed Pilot/Operator report, the flight had been airborne for 1.1 hours at 3,000 feet MSL. The engine "sputtered" and the pilot applied mixture and carburetor heat. The fuel selector was switched from one tank to the other. When the airplane had descended to 1,200 feet MSL, the pilot notified Ft. Smith Approach Control that he was not able to get the engine restarted and was going to land the airplane in a field. During the landing roll the airplane went through two fences and the wings struck fence posts. Damage occurred to the left wing spar and right wing strut.

Local authorities reported the airplane landed in an uneven pasture. During the landing roll, the airplane traveled 168 feet before hitting the first fence and an additional 198 feet before coming to rest.

Weather was reported by the pilot as 80 degrees Fahrenheit. Dew point in the area was reported by FSS as 60 degrees Fahrenheit. Carburetor moderate icing conditions at cruise power are favorable according to the enclosed chart.

The owner reported fuel in the tanks during the recovery of the wreckage. No mechanical discrepancies were reported by the owner.

Aircraft

Registration
N7617X
Reported as
Cessna 172B
Category
Airplane
Serial number
17248117
Engine
Continental O-300-D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Cook, Joseph W.
Registered owner
Cook Joe P.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 22, 1994 · 105 hours before

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
37
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
100 total · 49 in this make and model · 75 as pilot in command · 8 in the last 90 days · 4 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 6 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 61 °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.