# NTSB ANC86FA115: Stinson ST108, N75092, Chugiak, AK, July 28, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Field investigation · Final report
- Date: July 27, 1986, 21:49 local (Jul 28, 1986, 05:49 UTC)
- Place: Chugiak, AK
- Coordinates: 61.409, -149.169891 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.4090&lon=-149.1699&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4601
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86FA115
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4601/pdf
- Page: https://openairdocs.org/ntsb/ANC86FA115

## Analysis

THE AIRCRAFT LOST POWER IN FLIGHT AND CRASHED INTO A WOODED AREA. VMC CONDITIONS PREVAILED AND A VFR FLIGHT PLAN WAS FILED. ON SITE EXAMINATION OF THE FUEL TANKS REVEALED THAT LESS THAN A QUART OF FUEL REMAINED IN BOTH TANKS.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, descent - normal
  - fluid,fuel - exhaustion (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
  - fuel consumption calculations - misjudged, pilot in command (cause)
  - judgment - poor, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, descent - uncontrolled

## Aircraft

- Registration: N75092 (not matched to a registry record)
- Reported make and model: STINSON ST108
- Category: Airplane
- Serial number: 108-4464
- Airframe hours: 2298
- Engines: FRANKLIN 6A4-165-B3 165 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard D. Madden
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: Annual, September 18, 1985, 14 hours before
- Departed: KUSTATAN, AK
- Destination: Z15, BIRCHWOOD, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 2,033 total, 29 in this make and model, 1,254 as pilot in command, 4 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 180° at 5 knots, gusting 10
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 70 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860727044049A](https://openairdocs.org/incident/19860727044049A), Jul 27, 1986: Univar 1083, Chugiak, AK, Substantial damage. Pilot failed to verify fuel quantity before flight. Indicator malfunction led to fuel exhaustion.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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