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NTSB Report
February 25, 1991 · Piper PA46-310P · N9132X
Los Angeles, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 25, 1991
Injury Outcomes
No injuries (4 uninjured)
Location
Los Angeles, CA
Aircraft
Piper PA46-310P
Tail Number
N9132X
Operator
Malibu Air
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA112
A PIPER PA 46-310P lost engine power and was forced to land in a residential area. Exam of the aircraft fuel system revealed about one pint of fuel in each wing tank. There was no evidence of fuel spillage or any evidence aircraft fuel leaks at the accident scene. There was no evidence of an inflight fuel leak on the aircraft fuselage. The pilot indicated that his planned fuel consumption should have averaged 17 gallons per hour (GPH). The average fuel consumption for the trip was 19.9 GPH. The Piper PA 46-310P, Pilot Operating Handbook (POH) predicts a fuel consumption of 17.5 GPH for the trip flight conditions. The pilot calculated the max gross weight (GWT) of the aircraft at the start of the accident flight to be 4,116.7 pounds, 1.3 pounds below the max ramp WT of 4,118 pounds. The weight of the aircraft was recalculated based on actual passenger weights and actual baggage weights. The aircraft was determined to be 260 pounds over maximum GWT before takeoff. The POH does not list any performance data for an aircraft being operated over maximum GWT.
NTSB Probable Cause
THE POOR PREFLIGHT PLANNING PERFORMED BY THE PILOT-IN-COMMAND IN ACCURATELY DETERMINING THE WEIGHT AND FUEL CONSUMPTION OF THE AIRPLANE WHICH RESULTED IN LOSS OF ENGINE POWER DUE TO FUEL EXHAUSTION.
Full Narrative
A PIPER PA 46-310P LOST ENGINE POWER AND WAS FORCED TO LAND IN A RESIDENTIAL AREA. EXAM OF THE AIRCRAFT FUEL SYSTEM REVEALED ABOUT ONE PINT OF FUEL IN EACH WING TANK. THERE WAS NO EVIDENCE OF FUEL SPILLAGE OR ANY EVIDENCE AIRCRAFT FUEL LEAKS AT THE ACCIDENT SCENE. THERE WAS NO EVIDENCE OF AN INFLIGHT FUEL LEAK ON THE AIRCRAFT FUSELAGE. THE PILOT INDICATED THAT HIS PLANNED FUEL CONSUMPTION SHOULD HAVE AVERAGED 17 GALLONS PER HOUR (GPH). THE AVERAGE FUEL CONSUMPTION FOR THE TRIP WAS 19.9 GPH. THE PIPER PA 46-310P, PILOT OPERATING HANDBOOK (POH) PREDICTS A FUEL CONSUMPTION OF 17.5 GPH FOR THE TRIP FLIGHT CONDITIONS. THE PILOT CALCULATED THE MAX GROSS WEIGHT (GWT) OF THE AIRCRAFT AT THE START OF THE ACCIDENT FLIGHT TO BE 4,116.7 POUNDS, 1.3 POUNDS BELOW THE MAX RAMP WT OF 4,118 POUNDS. THE WEIGHT OF THE AIRCRAFT WAS RECALCULATED BASED ON ACTUAL PASSENGER WEIGHTS AND ACTUAL BAGGAGE WEIGHTS. THE AIRCRAFT WAS DETERMINED TO BE 260 POUNDS OVER MAXIMUM GWT BEFORE TAKEOFF. THE POH DOES NOT LIST ANY PERFORMANCE DATA FOR AN AIRCRAFT BEING OPERATED OVER MAXIMUM GWT.
Flight
Event TypeAccident
Event Time18:00 PST
Nearest AirportSanta Monica (5nm NNE)
Runway21
Runway Length4987 ft
Runway Width150 ft
Flight Plan FiledVfif
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA46-310P
Tail NumberN9132X
Aircraft CategoryAir
DamageSubstantial
OperatorMalibu Air
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSI0-520BEI · Reciprocating · 310
Seats6
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 39 · Second Class
Conditions
ConditionsVMC
LightBright Night
Wind260° @ 8 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point57 / 0 C
Altimeter30.00 inHg
Observation Time01:55
Weather SourceWFAC