FTW90LA071

NTSB accident investigation · Piper PA-28-140 · Rayne, LA · February 13, 1990

Accident · Minor injuriesLimited investigationFinal report
Date
February 13, 1990, 11:30 local (17:30 UTC)
Place
Rayne, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N1785TPiper PA-28-140
Weather
Visual (VMC) · Day
Status
Completed · report September 4, 1992
Report
Approved by Office Director
FAA report
19900213002089A
Case key
23107

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

Failure of the #3 exhaust valve, which necessitated a forced landing on unsuitable terrain.

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) - mech failure/malfCruise - normal
Engine assembly,valve,exhaust - failure,totalCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Terrain condition - dirt bank/rising embankmentFactor

Analysis

The airplane was damaged, when it struck a dike and the ground during a forced landing following a power loss. The pilot stated that while in cruise flight at 500 feet on a pipeline patrol flight, the engine started running rough & the airplane would not sustain level flight. The pilot elected to execute the forced landing in a rice field. Post-accident investigation revealed that the #3 exhaust valve had failed and was ingested, causing severe damage to the piston and cylinder. The cause of the failure of the valve was not determined.

Aircraft

Registration
N1785T
Reported as
Piper PA-28-140
Category
Airplane
Serial number
28-7125100
Airframe hours
4,338
Engine
Lycoming O-320-A1A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial observation · Part 91
Registered owner
Air Scan, Inc.
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
NONE · Prairieville, LA
Destination
Mount Belvieu, LA

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
25
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
2,547 total · 1,253 in this make and model · 2,320 as pilot in command · 105 in the last 90 days · 24 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 19 knots, gusting 27
Visibility
7 statute miles
Lowest ceiling
3,300 ft broken
Temperature
73 °F, dew point 57 °F
Altimeter
30.00 inHg
Observed at
LFT, 8 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.