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Atlas / NTSB / ANC12CA070

NTSB CAROL · Event

Event ANC12CA070

2012-07-07 Cantwell, Alaska, United States None 1 aircraft Status: Completed

Registry · N906JS

FAA Aircraft Registry record.

Make / Model

DEHAVILLAND DHC-2

Year of manufacture

1966 · 46 years old at event

Engine

AMA/EXPR UNKNOWN ENG

Seats / Engines

8 seats · 1 engine

Last airworthiness date

19840822

ADS-B equipped

Yes — Mode-S AC864F

Registrant of record

DESTINATION ALASKA AIR SERVICE LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The right seat passenger’s inadvertent contact with the emergency fuel shutoff valve, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the pilot's failure to provide a thorough preflight briefing to the passenger seated in the cockpit.

Factual narrative

The pilot stated that during normal cruise flight the engine suddenly lost all power. He attempted to restart the engine, but was unable, and elected to make a forced landing in a bog. During the landing, the left wing and right elevator stuck trees, and sustained substantial damage. After the forced landing, the pilot noticed that the emergency fuel shutoff lever on the right side of the center console had been moved toward the shutoff position. The passenger that was seated in the right seat of the cockpit stated that we was unaware of the fuel shutoff lever, and was not briefed on specific areas to be aware of in the cockpit, but that he had been adjusting himself in the seat just prior to the engine shutting down. The pilot stated that during cruise flight, the engine suddenly lost all power. He attempted to restart the engine but was unable and elected to make a forced landing in a bog. During the landing, the left wing and right elevator stuck trees, sustaining substantial damage. After the forced landing, the pilot noticed that the emergency fuel shutoff lever on the right side of the center console had been moved toward the shutoff position. The passenger who was seated in the right seat of the cockpit stated that he was unaware of the fuel shutoff lever and was not briefed on specific areas to be aware of in the cockpit but that he had been adjusting himself in the seat just prior to the engine shutting down. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Personnel issues-Action/decision-Action-(general)-Passenger - C
  • C Aircraft-Aircraft systems-Fuel system-Fuel selector/shutoff valve-Unintentional use/operation - C
  • F Personnel issues-Task performance-Communication (personnel)-(general)-Pilot - F

Verbatim from NTSB's published report. Source file NTSB_2012_ANC12CA070.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (fuel starvation). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗