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NTSB Report
July 17, 1991 · Beech 55B · N54339
Cupertino, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 17, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Cupertino, CA
Aircraft
Beech 55B
Tail Number
N54339
Operator
U S Navy Moffett Field Navy
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA317
DURING THE FINAL APPROACH SEGMENT OF A PRECISION APPROACH RADAR (PAR), THE AIRCRAFT'S LEFT ENGINE HAD A TOTAL LOSS OF POWER. THE PILOT SECURED THE ENGINE AND THEN NOTICED THE RIGHT ENGINE LOSING POWER. THE PILOT SECURED THE RIGHT ENGINE AND ENTERED A POWER OFF FORCED LANDING. HE ATTEMPTED TO LAND ON AN INTERSTATE HIGHWAY. DURING THE DESCENT, THE AIRPLANE'S RIGHT MAIN LANDING GEAR CONTACTED THE TOP OF A BUS. THE PILOT CONTINUED THE DESCENT UNTIL THE AIRCRAFT TOUCHED DOWN ON THE HIGHWAY. THE AIRCRAFT COLLIDED WITH A LANE DIVIDER DURING THE LANDING ROLL AND CAME TO A REST. AN FAA SAFETY INSPECTOR EXAMINED THE AIRCRAFT ON SCENE AND COULD NOT FIND ANY EVIDENCE OF FUEL IN ANY OF THE AIRCRAFT'S FUEL TANKS.
NTSB Probable Cause
FUEL EXHAUSTION WHICH RESULTED FROM THE PILOT INACCURATELY CALCULATING FUEL CONSUMPTION AND FUEL REQUIREMENTS.
Full Narrative
DURING THE FINAL APPROACH SEGMENT OF A PRECISION APPROACH RADAR (PAR), THE AIRCRAFT'S LEFT ENGINE HAD A TOTAL LOSS OF POWER. THE PILOT SECURED THE ENGINE AND THEN NOTICED THE RIGHT ENGINE LOSING POWER. THE PILOT SECURED THE RIGHT ENGINE AND ENTERED A POWER OFF FORCED LANDING. HE ATTEMPTED TO LAND ON AN INTERSTATE HIGHWAY. DURING THE DESCENT, THE AIRPLANE'S RIGHT MAIN LANDING GEAR CONTACTED THE TOP OF A BUS. THE PILOT CONTINUED THE DESCENT UNTIL THE AIRCRAFT TOUCHED DOWN ON THE HIGHWAY. THE AIRCRAFT COLLIDED WITH A LANE DIVIDER DURING THE LANDING ROLL AND CAME TO A REST. AN FAA SAFETY INSPECTOR EXAMINED THE AIRCRAFT ON SCENE AND COULD NOT FIND ANY EVIDENCE OF FUEL IN ANY OF THE AIRCRAFT'S FUEL TANKS.
Flight
Event TypeAccident
Event Time16:52 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 55B
Tail NumberN54339
Aircraft CategoryAir
DamageSubstantial
OperatorU S Navy Moffett Field Navy
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-470-L · Reciprocating · 265
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 21 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 8 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT