LAX91LA112

NTSB accident investigation · Piper PA46-310P · Los Angeles, CA · February 25, 1991

Accident · No injuriesLimited investigationFinal report
Date
February 24, 1991, 18:00 local (Feb 25, 1991, 02:00 UTC)
Place
Los Angeles, CA
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9132XPiper PA46-310P
Weather
Visual (VMC) · Night/bright
Status
Completed · report December 30, 1992
Report
Approved by Office Director
FAA report
19910224003449A
Case key
27121

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - nonmechanicalApproach
Preflight planning/preparation - poorPilot in command
Aircraft weight and balance - inaccuratePilot in commandCause
Fuel consumption calculations - inaccuratePilot in commandCause
Fluid,fuel - exhaustionCause
Forced landingDescent - emergency
Fluid,fuel - exhaustionCause
In flight collision with objectLanding
Object - residenceFactor

Analysis

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.

Aircraft

Registration
N9132X
Reported as
Piper PA46-310P
Category
Airplane
Serial number
4608086
Airframe hours
787
Engine
Continental TSI0-520BEI, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Malibu Air
Registered owner
Malibu Air
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 28, 1990 · 33 hours before
Departed
SKE · Taos, NM
Destination
SMO · Santa Monica, CA
Flight plan
VFR/IFR
Airport
SMO · Santa Monica, runway 21, 4,987 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
3,779 total · 103 in this make and model · 3,612 as pilot in command · 104 in the last 90 days · 29 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/bright
Wind
260° at 8 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
57 °F
Altimeter
30.00 inHg
Observed at
SMO, 4 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.