ATL92LA035

NTSB accident investigation · Cessna 172G · Millen, GA · January 11, 1992

Accident · Minor injuriesLimited investigationFinal report
Date
January 11, 1992, 10:05 local (15:05 UTC)
Place
Millen, GA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N5866RCessna 172G
Weather
Visual (VMC) · Day
Status
Completed · report August 13, 1993
Report
Approved by Office Director
FAA report
19920111000409A
Case key
8551

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 pilot's failure to properly use carburetor heat during icing conditions which resulted in the formation of carburetor ice and subsequent loss of engine power.

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(partial) - nonmechanicalCruise - normal
Weather condition - carburetor icing conditions
Carburetor heat - delayedPilot in commandCause
Fuel system,carburetor - ice
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll
Object - fence
Nose overLanding - roll

Analysis

While en route to savannah, Georgia at 5000 feet, the pilot reported a reduction in engine power. Reportedly, he changed the mixture setting and applied carburetor heat in an attempt to restore full power, but the engine power reduction continued to a point where powered flight was no longer possible. A forced landing was made to an open field. During the ground roll out, the airplane rolled through a fence, crossed a road, and flipped inverted after colliding with a second fence. The wreckage examination failed to disclose a mechanical failure or system malfunction. However, according to the icing probability curve, weather conditions near the accident site were favorable for the formation of carburetor ice.

Aircraft

Registration
N5866R
Reported as
Cessna 172G
Category
Airplane
Serial number
17253535
Airframe hours
3,717
Engine
Continental O-300D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Georgia Flight Inc.
Registered owner
Georgia Flight Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 3, 1991 · 93 hours before
Departed
AHN · Athens, GA
Destination
SAV · Savannah, GA
Flight plan
IFR

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
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
242 total · 171 in this make and model · 158 as pilot in command · 22 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 3 knots
Visibility
15 statute miles
Lowest ceiling
10,000 ft broken
Temperature
39 °F, dew point 28 °F
Altimeter
30.00 inHg
Observed at
SAV, 40 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.