ANC03LA119

NTSB accident investigation · Maule M-7-235 · McGrath, AK · September 19, 2003

Accident · No injuriesLimited investigationFinal report
Date
September 18, 2003, 19:40 local (Sep 19, 2003, 03:40 UTC)
Place
McGrath, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N5657AMaule M-7-235
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA, Anchorage Flight Standards District Office
FAA report
20030918027689A
Case key
57974

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

Fuel starvation due to the pilot's improper placement of the fuel selector to a nearly empty fuel tank prior to takeoff, resulting in a loss of engine power, and an in-flight collision with trees.

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) - nonmechanicalTakeoff - initial climb
Fluid,fuel - starvationCause
Fuel tank selector position - improperPilot in commandCause
Forced landingEmergency landing after takeoff
In flight collision with objectEmergency landing after takeoff
Object - tree(s)

Analysis

The commercial certificated pilot reported he was attempting to takeoff from an off-airport site in his tailwheel airplane. He indicated he inadvertently left the fuel selector on a nearly empty fuel tank. Shortly after liftoff, the engine sputtered, and lost all power. The airplane subsequently descended into trees and received structural damage to the wings and lift struts. In his NTSB Pilot/Operator Aircraft Accident/Incident Report, in the section: Recommendation (How Could This Accident Have Been Prevented?), the pilot wrote, "Land and takeoff with fuel selector set on BOTH tanks."

Factual narrative

On September 18, 2003, about 1940 Alaska daylight time, a tailwheel-equipped Maule M-7-235 airplane, N5657A, sustained substantial damage when it collided with trees during an emergency landing following a loss of engine power during takeoff. The off-airport accident site was approximately 6 miles southeast of McGrath, Alaska. The commercial pilot and sole passenger were not injured. The Title 14, CFR Part 91 business flight was operated by the pilot in support of his hunt guide business. The flight operated in visual meteorological conditions without a flight plan. The flight departed the pilot's main hunting base camp, about 30 miles east of Farewell, Alaska, about 1820, and was returning to that camp when the accident occurred.

During a telephone conversation with the National Transportation Safety Board investigator-in-charge on September 19, the pilot's son, an aviation mechanic, related that he had been to the accident site to assist in the recovery of the airplane. He said that his father had related to him that he was attempting to takeoff to the west, and was in the initial climb, when the engine lost all power. The airplane subsequently descended and collided with trees at the end of the takeoff site, sustaining substantial damage to the wings and lift struts. The pilot's son said that there were no preimpact mechanical problems with the airplane, and that his father had told him that he had inadvertently selected a nearly empty fuel tank prior to the takeoff attempt, and the engine "quit" because of fuel starvation.

In the NTSB Pilot/Operator Aircraft Accident/Incident Report submitted by the pilot and dated September 30, 2003, in the section: Recommendation (How Could This Accident Have Been Prevented?), the pilot wrote, "Land and takeoff with the fuel selector set on BOTH tanks."

Aircraft

Registration
N5657A
Reported as
Maule M-7-235
Category
Airplane
Serial number
4013C
Airframe hours
3,570
Engine
Lycoming IO-540-W1A5D, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
George E. Palmer
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 5, 2002 · 81 hours before
Departed
MCG · McGrath, AK
Flight plan
Company VFR

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.

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 9 knots
Visibility
80 statute miles
Lowest ceiling
None
Temperature
30 °F

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 N5657A · 2

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