ATL87FA039

NTSB accident investigation · Cessna 170B · Madison, GA · December 9, 1986

Accident · FatalField investigationFinal report
Date
December 9, 1986, 12:15 local (17:15 UTC)
Place
Madison, GA
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N2464DCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 1988
Report
Approved by Office Director
FAA report
19861209067019A
Case key
7272

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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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 powerTakeoff
Engine assembly,valve,intake - jammedCause
Weather condition - carburetor icing conditionsFactor
Loss of control - in flightTakeoff - initial climb
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
Overconfidence in personal abilityPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Although there were no witnesses to the crash, one witness did observe the acft taxiing at a very slow speed toward the dept end of the rwy. Abt 30 mins later the wreckage was fd in a fld east of the airstrip. Exam indicated it collided w the gd in a near vertical attitude similar to an acft that had stalled aft tkof. The #5 exh valve was found seized in the open position. Conditions were conducive to carb ice and the plt handbook cautions against carb ice forming on the gd at idle speeds. In addition, rcds indicated the act was authrzd use of auto fuel and an FAA ac indicated carb ice forms in less time and at higher temps than av gas.

Aircraft

Registration
N2464D
Reported as
Cessna 170B
Category
Airplane
Serial number
20616
Airframe hours
4,082
Engine
Continental O-300-D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Paul & Terry Martin
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · January 11, 1986 · 42 hours before
Departed
Madison, GA
Airport
runway 9, 1,650 × 20 ft, grass/turf

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
43
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
10,144 total

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 6 knots
Visibility
7 statute miles
Lowest ceiling
900 ft overcast
Temperature
64 °F, dew point 61 °F
Altimeter
30.00 inHg
Observed at
AHN, 30 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.