NYC90LA017

NTSB accident investigation · Cessna T172N · Townsend, MA · October 25, 1989

Accident · Minor injuriesLimited investigationFinal report
Date
October 25, 1989, 11:00 local (15:00 UTC)
Place
Townsend, MA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6309FCessna T172N
Weather
Visual (VMC) · Day
Status
Completed · report January 23, 1992
Report
Approved by Office Director
FAA report
19891025042829A
Case key
36574

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 pilot's failure to use carburetor heat during weather conditions favorable to carburetor icing. A contributing factor was the lack of suitable terrain.

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 - improper use ofPilot in commandCause
Forced landingApproach - vfr pattern - final approach
In flight collision with objectApproach - vfr pattern - final approach
Terrain condition - none suitableFactor
Object - tree(s)Factor

Analysis

The Cessna 172 was cruising at 3200 feet when it lost power due to carburetor icing. The student pilot was unable to restart the engine and made a forced landing in a wooded area to avoid power lines & personnel.

Aircraft

Registration
N6309F
Reported as
Cessna T172N
Category
Airplane
Serial number
172-73187
Airframe hours
2,200
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Fitchburg Colonial Aviation
Airworthiness certificate
Standard, Utility
Last inspection
Annual · October 11, 1989 · 33 hours before
Departed
FIT · Fitchburg, MA

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
55
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
102 total · 60 in this make and model · 12 as pilot in command · 15 in the last 90 days · 2 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
M&T, 15 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.