ATL91LA112

NTSB accident investigation · Piper PA-12 · Conway, SC · June 15, 1991

Accident · No injuriesLimited investigationFinal report
Date
June 15, 1991, 13:36 local (17:36 UTC)
Place
Conway, SC
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2GVPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report December 15, 1992
Report
Approved by Office Director
FAA report
19910615022239A
Case key
8420

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 number two exhaust valve, which resulted in loss of engine power.

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) - mech failure/malfCruise
Engine assembly,valve,exhaust - failure,totalCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll
Object - tree(s)

Analysis

The banner tow pilot was cruising adjacent to a local golf course at 1000 AGL when he experienced a gradual loss of engine power followed by a complete loss of engine power. Attempts to regain full power and restart the engine failed. The pilot maneuvered the airplane into position for an approach to a fairway and released the banner. The airplane came to rest 15 feet off the departure end of the fairway in a wooded area. Subsequent examinations of the airplane revealed that the #2 exhaust valve had failed. The engine was last overhauled 2556 hours prior to this accident. The exhaust valve's time in service was not determined.

Aircraft

Registration
N2GV
Reported as
Piper PA-12
Category
Airplane
Serial number
12-824
Airframe hours
2,556
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Sky Signs, Inc.
Registered owner
Sky Signs, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · August 23, 1990 · 180 hours before
Departed
Conway, SC
Destination
N Myrtle Beach, SC

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
54
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
4,293 total · 1,581 in this make and model · 4,058 as pilot in command · 260 in the last 90 days · 100 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 9 knots
Visibility
5 statute miles
Temperature
88 °F, dew point 73 °F
Altimeter
30.00 inHg
Observed at
CRE, 25 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.