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NTSB Report
January 2, 1992 · Piper PA-31P · N500BH
Mosinee, WI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 2, 1992
Injury Outcomes
1 injury (1 fatality)
Location
Mosinee, WI
Aircraft
Piper PA-31P
Tail Number
N500BH
Operator
Becher Hoppe Engineers
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CHI92FA066
PILOT WAS CLEARED FOR AN ILS APPROACH AT HIS DESTINATION, AND REQUESTED TO REPORT ALTITUDE OF 3,000 FEET ON THE APPROACH. THIS WAS THE LAST RADIO TRANSMISSION RECEIVED FROM THE PILOT. AIRCRAFT WAS FOUND IN SOFT FIELD SIX MILES FROM THE AIRPORT. LANDING GEAR WAS UP, FLAPS WERE DOWN. FISHERMAN NEARBY REPORTED HEARING THE AIRCRAFT MANEUVERING AT LOW ALTITUDE. HE REPORTED THAT THE ENGINES SOUNDED FINE, BUT THE SOUND WAS CHANGING IN PITCH AND INTENSITY. HE REPORTED THAT GOT QUIET JUST A FEW SECONDS BEFORE HE HEARD THE IMPACT. THE INVESTIGATION REVEALED THAT THERE WAS EVIDENCE OF A FIRE IN THE NOSE BAGGAGE COMPARTMENT. THE CABIN HEATER IS LOCATED IN THE NOSE BAGGAGE COMPARTMENT, AND HAD A RECENT HISTORY OF DISCREPANCIES.
NTSB Probable Cause
AN INFLIGHT FIRE WITH THE CABIN HEATER AS THE ORIGIN, AND UNSUITABLE TERRAIN IN WHICH TO MAKE A FORCED LANDING. A FACTOR RELATED TO THE ACCIDENT WAS THE SOFT TERRAIN.
Full Narrative
PILOT WAS CLEARED FOR AN ILS APPROACH AT HIS DESTINATION, AND REQUESTED TO REPORT ALTITUDE OF 3,000 FEET ON THE APPROACH. THIS WAS THE LAST RADIO TRANSMISSION RECEIVED FROM THE PILOT. AIRCRAFT WAS FOUND IN SOFT FIELD SIX MILES FROM THE AIRPORT. LANDING GEAR WAS UP, FLAPS WERE DOWN. FISHERMAN NEARBY REPORTED HEARING THE AIRCRAFT MANEUVERING AT LOW ALTITUDE. HE REPORTED THAT THE ENGINES SOUNDED FINE, BUT THE SOUND WAS CHANGING IN PITCH AND INTENSITY. HE REPORTED THAT GOT QUIET JUST A FEW SECONDS BEFORE HE HEARD THE IMPACT. THE INVESTIGATION REVEALED THAT THERE WAS EVIDENCE OF A FIRE IN THE NOSE BAGGAGE COMPARTMENT. THE CABIN HEATER IS LOCATED IN THE NOSE BAGGAGE COMPARTMENT, AND HAD A RECENT HISTORY OF DISCREPANCIES.
Flight
Event TypeAccident
Event Time13:05 CST
Nearest Airport0nm N
Runway0
Flight Plan FiledIFR
Aircraft FireBoth
Aircraft ExplosionBoth
Aircraft
AircraftPiper PA-31P
Tail NumberN500BH
Aircraft CategoryAir
DamageDestroyed
OperatorBecher Hoppe Engineers
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · TIGO-541-E1A · Reciprocating · 425
Seats6
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 59 · Third Class
Conditions
ConditionsIMC
LightDaylight
Wind140° @ 4 kt
Visibility1 sm
CeilingOvercast 500 ft
Temperature / Dew Point32 C / 30 C
Altimeter30.00 inHg
Observation Time18:45
Weather SourceWFAC