LAX89LA183

NTSB accident investigation · Piper PA-24 · Montague, CA · May 6, 1989

Accident · No injuriesLimited investigationFinal report
Date
May 6, 1989, 09:00 local (16:00 UTC)
Place
Montague, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N550VPiper PA-24
Weather
Visual (VMC) · Day
Status
Completed · report August 22, 1990
Report
Approved by Office Director
FAA report
19890506011009A
Case key
26399

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 pilot's failure to extend the landing gear because of inattention. Contributing to the accident was inadequate maintenance of the airplane which failed to repair the landing gear warning throttle position switch.

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.

Gear not extendedLanding
Wheels up landing - inadvertentPilot in commandCause
InattentivePilot in commandFactor
Gear extension - not attainedPilot in commandFactor
Landing gear,normal retraction/extension assembly - inoperativeFactor
Electrical system,circuit breaker - openFactor
Landing gear,emergency extension assembly - not engagedCause
Landing gear,gear warning system - inoperative
Maintenance - inadequateOther maintenance personnelFactor
Maintenance,major repair - inadequateOther maintenance personnel

Analysis

The airplane landed with the landing gear retracted. The airplane had recently undergone replacement on the landing gear transmission and maintenance on the gear system. After the airplane was raised from the runway, the landing gear was extended manually. Post accident investigation revealed the gear motor circuit breaker was popped. Further investigation indicated the gear motor was binding because of insufficient adjustment between the transmission and gear motor. This airplane is equipped with a manual extension system that also serves as a secondary gear position indicator. If the landing gear is moving by electrical actuation, the manual extension system is also moving at the same time.

Aircraft

Registration
N550V
Reported as
Piper PA-24
Category
Airplane
Serial number
24-3078
Airframe hours
4,387
Engine
Lycoming O-540-A1D5, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Samual Powell
Registered owner
Autoword Slaes & Leasing
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 1, 1988 · 147 hours before
Departed
WVI · Watsonville, CA
Destination
105
Airport
105 · Montague-Yreka Rohrer Fld, runway 32, 3,360 × 50 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
42
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
327 total · 175 in this make and model · 322 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 2 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 54 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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