ANC93LA181

NTSB accident investigation · Piper PA-12 · Iliamna, AK · September 19, 1993

Accident · No injuriesLimited investigationFinal report
Date
September 19, 1993, 13:00 local (21:00 UTC)
Place
Iliamna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Emergency descent
Aircraft
N3680MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930919034829A
Case key
2431

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

On this page

Probable cause

Total loss of engine power due to fuel exhaustion and the pilot's improper fuel consumption calculations. Factor was the 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(total) - nonmechanicalDescent - emergency
Fluid,fuel - exhaustionCause
Fuel consumption calculations - improperPilot in commandCause
Forced landingApproach
Nose overLanding - flare/touchdown
Terrain condition - none suitableFactor

Analysis

The pilot said the engine quit due to fuel exhaustion about one mile short of his destination, where he was planning to refuel. The off-airport forced landing resulted in the airplane nosing over. The pilot said he thought he had enough fuel to reach his destination.

Factual narrative

History of flight

On September 19, 1993, at 1300 Alaska daylight time, a wheel equipped Piper PA-12 airplane, N3680M, experienced a total loss of engine power, and nosed over during the subsequent forced landing, following fuel exhaustion during an approach to the airport at Iliamna, Alaska. The private pilot, the sole occupant, was not injured, and the airplane was substantially damaged. The local personal flight, operating under 14 CFR Part 91, departed a remote site located about 20 miles west of Iliamna at 1245. Visual meteorological conditions existed, and no flight plan was filed.

Shortly after the accident during a telephone interview, the pilot stated the following in part: "I left my hunting partner and planned to fly to Iliamna to get fuel in the airplane. I knew the fuel was low in the airplane, but since Iliamna was so close, and I knew I would have a tailwind, I thought I would make it. I ran out of gas and the engine quit about a mile before I reached the runway. Upon touching down on the tundra, the airplane nosed over and was substantially damaged."

Aircraft

Registration
N3680M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-2631
Engine
Lycoming O-320-B2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Essex, Charles P.
Registered owner
Essex, Charles P.
Airworthiness certificate
Standard, Normal

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
40
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
170 total · 100 in this make and model · 135 as pilot in command · 30 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 12 knots
Visibility
70 statute miles
Lowest ceiling
4,000 ft broken
Temperature
50 °F, dew point 39 °F
Altimeter
30.00 inHg
Observed at
ILI, 1 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 N3680M · 1

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