No fatalities

26 Aug 2017: PIPER PA 12 NO SERIES — WRANGELL MOUNTAIN AIR INC. — Gulkana, AK

Gulkana, AK, United States

On 26 Aug 2017, a PIPER PA 12 NO SERIES operated by WRANGELL MOUNTAIN AIR INC. was involved in an aviation accident near Gulkana, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s inadequate in-flight fuel planning, which resulted in a loss of engine power due to fuel exhaustion. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A tailwheel-equipped airplane experienced fuel exhaustion and engine power loss during a multi-leg flight, leading to a forced landing with substantial damage to the left wing.

Incident Overview

A pilot operating a tailwheel-equipped airplane was transporting hunters to a remote cabin on a multi-leg flight covering approximately 146 miles. The flight departed with about 20 gallons of fuel, sufficient for 2.5 hours of flight time plus a 36-minute reserve.

Flight Conditions and Diversion

The pilot reported visual meteorological conditions (VMC) prevailed during the flight, but low stratus clouds and rain showers prompted a diversion from the planned flight path. On the final leg, an unanticipated headwind component of 15-25 mph was encountered.

Fuel Exhaustion and Forced Landing

Approximately 2 miles from the destination, fuel exhaustion occurred, resulting in a total loss of engine power. The pilot deviated from the intended destination toward the Copper River to execute a forced landing. During the base-to-final leg of the landing approach, the headwind shifted to a tailwind, causing the airplane to land in a left-wing-low orientation.

Postaccident Examination

A postaccident examination revealed substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures that would have precluded normal operation.

Contributing factors

Causes

Fluid levelPilot

Other contributing factors

Effect on operationContributed to outcome