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NTSB Report
March 30, 1991 · Beech A35 · N584B
Hilt, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 30, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Hilt, CA
Aircraft
Beech A35
Tail Number
N584B
Operator
Mosley Otto A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA150
A SEALANT BY THE NAME OF 'FUELUBE' WAS SUBSTITUTED FOR A LUBRICANT FOR THE 'O' RINGS SEALS IN THE FUEL SELECTOR/MANUAL FUEL PUMP DURING MAINTENANCE. THE PILOT STATED THAT 10 OPERATIONAL HOURS AFTER THE APPLICATION OF 'FUELUBE' HE EXPERIENCED BINDING IN THE FUEL SELECTOR WHEN HE ATTEMPTED TO CHANGE TANKS AND THE HE WAS UNABLE TO FEEL THE DETENT POSITION. HE ATTEMPTED TO CHANGED FUEL TANK WHILE ON ACROSS COUNTRY FLIGHT AND THE ENGINE FAILED FROM FUEL STARVATION. HE EXECUTED A FORCED LANDING TO AN OPEN, ROCK STREWN, FIELD THAT IMPARTED SUBSTANTIAL DAMAGED TO THE AIRCRAFT DURING TOUCH DOWN.
NTSB Probable Cause
THE APPLICATION OF A SEALANT INSTEAD OF A LUBRICANT TO THE INTERNAL 'O' RINGS SEALS IN THE FUEL SELECTOR BY MAINTENANCE PERSONNEL. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE PILOT'S INABILITY TO SELECT A FUEL SOURCE AND FUEL STARVATION THAT RESULTED IN AN ENGINE FAILURE. ROUGH TERRAIN AT THE LANDING SITE WAS ALSO A FACTOR IN THE ACCIDENT.
Full Narrative
A SEALANT BY THE NAME OF 'FUELUBE' WAS SUBSTITUTED FOR A LUBRICANT FOR THE 'O' RINGS SEALS IN THE FUEL SELECTOR/MANUAL FUEL PUMP DURING MAINTENANCE. THE PILOT STATED THAT 10 OPERATIONAL HOURS AFTER THE APPLICATION OF 'FUELUBE' HE EXPERIENCED BINDING IN THE FUEL SELECTOR WHEN HE ATTEMPTED TO CHANGE TANKS AND THE HE WAS UNABLE TO FEEL THE DETENT POSITION. HE ATTEMPTED TO CHANGED FUEL TANK WHILE ON ACROSS COUNTRY FLIGHT AND THE ENGINE FAILED FROM FUEL STARVATION. HE EXECUTED A FORCED LANDING TO AN OPEN, ROCK STREWN, FIELD THAT IMPARTED SUBSTANTIAL DAMAGED TO THE AIRCRAFT DURING TOUCH DOWN.
Flight
Event TypeAccident
Event Time11:00 PST
Nearest Airport0nm
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech A35
Tail NumberN584B
Aircraft CategoryAir
DamageSubstantial
OperatorMosley Otto A
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · E255-8 · Reciprocating · 255
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 74 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time18:50
Weather SourceWFAC