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NTSB Report
May 16, 1991 · Beech A36 · N6724T
Rawlins, WY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 16, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Rawlins, WY
Aircraft
Beech A36
Tail Number
N6724T
Operator
John L Ronacher
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA106
THE PILOT OF THE BEECH A36 WAS FLYING ON TOP OF AN OVERCAST WHEN HE NOTED THAT THE READINGS ON HIS ENGINE GAUGES WERE DROPPING. HE DETERMINED THAT THE ALTERNATOR HAD FAILED AND WAS UNSUCCESSFUL IN HIS ATTEMPT TO USE THE STANDBY GENERATOR. HE THEN DEAD-RECKONED TO A LET-DOWN THROUGH THE CLOUDS AT RAWLINS, WY, AND LANDED SHORT OF THE RUNWAY WHEN HE BELIEVED THAT THE ENGINE WAS NOT PRODUCING ADEQUATE POWER.
NTSB Probable Cause
THE PILOT'S LACK OF FAMILIARITY WITH THE AIRCRAFT, HIS LACK OF UNDERSTANDING OF THE ELECTRICAL SYSTEM, AND A PREMATURE PRECAUTIONARY LANDING. CONTRIBUTING TO THE ACCIDENT WERE AN ALTERNATOR FAILURE AND THE RESULTANT FALSE READINGS OF THE POWERPLANT INSTRUMENTS.
Full Narrative
THE PILOT OF THE BEECH A36 WAS FLYING ON TOP OF AN OVERCAST WHEN HE NOTED THAT THE READINGS ON HIS ENGINE GAUGES WERE DROPPING. HE DETERMINED THAT THE ALTERNATOR HAD FAILED AND WAS UNSUCCESSFUL IN HIS ATTEMPT TO USE THE STANDBY GENERATOR. HE THEN DEAD-RECKONED TO A LET-DOWN THROUGH THE CLOUDS AT RAWLINS, WY, AND LANDED SHORT OF THE RUNWAY WHEN HE BELIEVED THAT THE ENGINE WAS NOT PRODUCING ADEQUATE POWER.
Flight
Event TypeAccident
Event Time05:12 MDT
Nearest AirportRawlins Muni (0nm N)
Runway22
Runway Length7000 ft
Runway Width100 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech A36
Tail NumberN6724T
Aircraft CategoryAir
DamageSubstantial
OperatorJohn L Ronacher
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-550-B · Reciprocating · 300
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 24 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 15 kt
Visibility5 sm
CeilingBroken clouds 1800 ft
Temperature / Dew Point39 C / 37 C
Altimeter30.00 inHg
Weather SourceWIT