LAX88LA279

NTSB accident investigation · Mooney M20E · Visalia, CA · August 3, 1988

Accident · No injuriesLimited investigationFinal report
Date
August 3, 1988, 15:30 local (22:30 UTC)
Place
Visalia, CA
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9273MMooney M20E
Weather
Visual (VMC) · Day
Status
Completed · report November 7, 1989
Report
Approved by Office Director
FAA report
19880803067969A
Case key
26073

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

On this page

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(total) - nonmechanicalDescent - normal
Engine accessories,vacuum pump - lack ofCause
Fluid,oil - loss,totalCause
Engine assembly - seizedCause
Maintenance,modification - improperPilot in commandCause
Forced landingDescent - emergency
On ground/water encounter with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Terrain condition - high vegetationFactor

Analysis

The pilot removed the vacuum pump from the engine prior to the flight because of an internal failure in the pump. The pilot did not install a cover plate on the accessory mounting hole vacated by the pump. After takeoff on the local flight, the pilot noticed the oil pressure was dropping and the temperature was rising. He elected to return to the airport. The engine siezed and the pilot made a forced landing in a cotton field.

Aircraft

Registration
N9273M
Reported as
Mooney M20E
Category
Airplane
Serial number
1212
Airframe hours
1,629
Engine
Lycoming IO-360-A1A, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Stanford, William L.
Registered owner
Itzaco, Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 16, 1987 · 35 hours before
Departed
VIS
Destination
VIS
Airport
VIS

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
55
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
531 total · 466 in this make and model · 500 as pilot in command · 16 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 5 knots
Visibility
15 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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

Other investigations on N9273M · 1

Matched to the same aircraft by N-number and date.