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NTSB Report
July 30, 1989 · Cessna 305A · N5209G
Chalfont, PA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 30, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Chalfont, PA
Aircraft
Cessna 305A
Tail Number
N5209G
Operator
Joseph E Hefferman Jr
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC89LA218
SHORTLY AFTER TAKEOFF FROM A PRIVATE FIELD, THE AIRCRAFT ENGINE LOST POWER, AND THE AIRCRAFT WAS LANDED IN A SOY BEAN FIELD WHERE IT NOSED OVER. AN ENGINE CHECK WAS MADE AND NO MECHANICAL DISCREPANCIES WERE FOUND. THE PHILADELPHIA TEMPERATURE AND DEW POINT WERE 72 DEGREES AND 59 DEGREES, RESPECTIVELY.
NTSB Probable Cause
THE PILOT'S IMPROPER USE OF CARBURETOR HEAT, WHICH RESULTED IN A POWER LOSS DUE TO CARBURETOR ICE. FACTORS RELATED TO THE ACCIDENT WERE: CARBURETOR ICING CONDITIONS AND ROUGH/UNEVEN TERAIN IN THE EMERGENCY LANDING AREA.
Full Narrative
SHORTLY AFTER TAKEOFF FROM A PRIVATE FIELD, THE AIRCRAFT ENGINE LOST POWER, AND THE AIRCRAFT WAS LANDED IN A SOY BEAN FIELD WHERE IT NOSED OVER. AN ENGINE CHECK WAS MADE AND NO MECHANICAL DISCREPANCIES WERE FOUND. THE PHILADELPHIA TEMPERATURE AND DEW POINT WERE 72 DEGREES AND 59 DEGREES, RESPECTIVELY.
Flight
Event TypeAccident
Event Time09:00 EDT
Nearest AirportMOYER (0nm N)
Runway13
Runway Length2800 ft
Runway Width80 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 305A
Tail NumberN5209G
Aircraft CategoryAir
DamageSubstantial
OperatorJoseph E Hefferman Jr
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-11B · Reciprocating · 213
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 58 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility3 sm
CeilingOvercast 1500 ft
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO