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NTSB Report
March 31, 1992 · Cessna 140 · N3047N
Palmer, MA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 31, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Palmer, MA
Aircraft
Cessna 140
Tail Number
N3047N
Operator
Robert E Martin Jr
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC92LA071
THE AIRPLANE WAS ON FINAL APPROACH AND THE PILOT ADDED POWER BECAUSE HE SAW HE WOULD BE LANDING SHORT OF THE RUNWAY. THERE WAS NO ENGINE RESPONSE TO THE THROTTLE MOVEMENT AND THE AIRPLANE LANDED 500 FT SHORT OF THE RUNWAY IN A MUDDY AREA AND FLIPPED OVER. THE ENGINE WAS RUN ON THE AIRPLANE AFTER THE ACCIDENT AND NO DISCREPANCIES WERE NOTED. THE TEMPERATURE AND DEWPOINT 20 MILES TO THE EAST WAS RECORDD AS 43 F AND 32 F. ACCORDING TO THE FAA CARBURETOR ICING CHART, THE RECORDED TEMPERATURE AND DEWPOINT WAS CONDUCIVE TO SERIOUS CARBURETOR ICING. WHEN INTERVIEWED THE PILOT SAID HE USED CARBURETOR HEAT ON APPROACH; HOWEVER, HE WAS NOT AWARE OF THE TEMPERATURE/DEWPOINT SPREAD.
NTSB Probable Cause
THE IMPROPER USE OF CARBURETOR HEAT WHICH RESULTED IN A POWER LOSS DUE TO CARBURETOR ICE OVER UNSUITABLE TERRAIN. FACTORS RELATED TO THE ACCIDENT WERE THE CARBURETOR ICING CONDITIONS AND THE FAILURE OF THE PILOT TO BE AWARE OF THE TEMPERATURE/DEWPOINT SPREAD.
Full Narrative
THE AIRPLANE WAS ON FINAL APPROACH AND THE PILOT ADDED POWER BECAUSE HE SAW HE WOULD BE LANDING SHORT OF THE RUNWAY. THERE WAS NO ENGINE RESPONSE TO THE THROTTLE MOVEMENT AND THE AIRPLANE LANDED 500 FT SHORT OF THE RUNWAY IN A MUDDY AREA AND FLIPPED OVER. THE ENGINE WAS RUN ON THE AIRPLANE AFTER THE ACCIDENT AND NO DISCREPANCIES WERE NOTED. THE TEMPERATURE AND DEWPOINT 20 MILES TO THE EAST WAS RECORDD AS 43 F AND 32 F. ACCORDING TO THE FAA CARBURETOR ICING CHART, THE RECORDED TEMPERATURE AND DEWPOINT WAS CONDUCIVE TO SERIOUS CARBURETOR ICING. WHEN INTERVIEWED THE PILOT SAID HE USED CARBURETOR HEAT ON APPROACH; HOWEVER, HE WAS NOT AWARE OF THE TEMPERATURE/DEWPOINT SPREAD.
Flight
Event TypeAccident
Event Time17:15 EST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 140
Tail NumberN3047N
Aircraft CategoryAir
DamageSubstantial
OperatorRobert E Martin Jr
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-85-12 · Reciprocating · 85
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 57 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind10° @ 10 kt
Visibility30 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point43 C / 0 C
Altimeter29.00 inHg
Observation Time21:50
Weather SourceWFAC