NYC83FA122

NTSB accident investigation · Cessna 172N · N. Stonington, CT · May 20, 1983

Accident · Serious injuriesField investigationFinal report
Date
May 20, 1983, 15:12 local (19:12 UTC)
Place
N. Stonington, CT
Injuries
2 serious, 5 minor
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4980GCessna 172N
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830520075909A
Case key
35047

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.

Airframe/component/system failure/malfunctionCruise - normal
Electrical system,voltage regulator - openFactor
Maintenance,inspection - poorOther maintenance personnelCause
Electrical system,circuit breaker - popped/trippedFactor
Remedial action - not performedPilot in commandCause
Instrument light(s) - disconnectedFactor
Checklist - improperPilot in commandCause
Electrical system,battery - exhaustionFactor
Loss of engine power(total) - nonmechanicalGo-around (vfr)
Weather condition - carburetor icing conditionsFactor
Precautionary landing - attemptedPilot in commandFactor
Carburetor heat - improper use ofPilot in commandCause
In flight collision with objectGo-around (vfr)
Object - tree(s)Factor
Compensation for wind conditions - improperPilot in commandCause
Weather condition - low ceilingFactor
Weather condition - tailwindFactor

Analysis

The acft collided with a tree during a go-around at night following a downwind precautionary landing. During the flt the plt had noted the fuel gauges at low readings and said he suspected a 'fuel leak'. He made radio calls to try to go to an arpt before fuel exhaustion. Shortly after radio contact was made communications were lost and an electrical failure was experienced. The plt descended below the clouds. He abandoned one approach because the field looked 'short and soggy.' The next approach to another field was missed he said because of a tailwind. During go-around the engine quit and the acft collided with a tree. Examination of the acft after the accident showed the alternator circuit breakerpopped. The alternator was removed and tested. It produced a voltage indication at 700 rpms to 4500 rpms. Maximum voltage was 30 volts. The low voltage light bulb was incorrect and the wiring was disconnected. The weather at accident time was conducive to carburetor icing.

Aircraft

Registration
N4980G
Reported as
Cessna 172N
Category
Airplane
Serial number
17273527
Airframe hours
830
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Part 135
Operator
Coastal Air Services, Inc.
Registered owner
Whiteny Bowles DBA
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 17, 1983 · 74 hours before
Departed
ACK · Nantucket, MA
Destination
GON · Groton, CT
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
32
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,510 total · 550 in this make and model · 2,295 as pilot in command · 115 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
220° at 12 knots
Visibility
1 statute miles
Lowest ceiling
500 ft overcast
Altimeter
30.00 inHg
Observed at
GON, 8 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.