ATL88FA220

NTSB accident investigation · Piper PA-28-151 · La Grange, GA · July 25, 1988

Accident · No injuriesField investigationFinal report
Date
July 24, 1988, 21:08 local (Jul 25, 1988, 01:08 UTC)
Place
La Grange, GA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4506FPiper PA-28-151
Weather
Visual (VMC) · Dusk
Status
Completed · report September 25, 1989
Report
Approved by Office Director
FAA report
19880724030789A
Case key
7618

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.

Abrupt maneuverCruise
Light condition - duskFactor
Buzzing - intentionalPilot in commandCause
Ostentatious displayPilot in commandCause
Pull-up - abruptPilot in commandCause
Stall - encounteredPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The PIC stated he had a hardover in the single axis autopilot which resulted in the acft constantly turning right. Therefore due to the continous bank he elected to make a precautionary landing in a lake versus on land. The acft impacted in a lake left of the planned course. The roll servo was designed so that when power was removed from the servo a spring disengaged the servo from the aileron bridle cable. The spring was found functional after recovery of the acft from the lake. Witnesses rpted seeing the acft flying about 10-15 feet above the lake surface for about one quarter mile. As the acft approached a bridge it pulled up abruptly, stalled, and impacted the water.

Aircraft

Registration
N4506F
Reported as
Piper PA-28-151
Category
Airplane
Serial number
28-7715043
Airframe hours
1,038
Engine
Lycoming O-320-E3D, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Robert M. Thompson
Registered owner
R. M. Thompson & D. Laguardia
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · April 14, 1988 · 36 hours before
Departed
06A · Tuskegee, AL
Destination
CCO · Newnan, GA

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
23
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
280 total · 245 in this make and model · 254 as pilot in command · 37 in the last 90 days

Weather

Conditions
Visual (VMC) · Dusk
Wind
310° at 5 knots
Visibility
5 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
84 °F, dew point 63 °F
Altimeter
30.00 inHg
Observed at
CSG, 30 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.

Other investigations on N4506F · 1

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