# NTSB ANC86LA002: Artic S-1B2, N53AT, Anchorage, AK, October 12, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 12, 1985, 12:30 local (20:30 UTC)
- Place: Anchorage, AK
- Coordinates: 70.10025, -149.869522 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=70.1003&lon=-149.8695&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4618
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA002
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4618/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA002

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, approach - vfr pattern - base leg/base to final
  - fuel system - blocked(total) (cause)
  - fuel supply - not maintained, pilot in command (cause)
  - fuel system,line - blocked(total) (cause)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown

## Analysis

THE ENGINE FAILURE WAS DUE TO A LINE CAP LOOSE IN THE BAFFLED PORTION OF THE TANK NEAR THE OUTLET LINES. THE PILOT STATED THE AIRCRAFT ENGINE QUIT AT 1000 FEET HE THEN ATTEMPTED AN EMERGENCY LANDING IN A SCHOOL YARD.

## Aircraft

- Registration: [N53AT](https://openairdocs.org/aircraft/N53AT), registered now, S/N 1004, built 1976 (OpenAirDocs)
- Reported make and model: Artic Aircraft Corp. S-1B2
- Registry model: [Arctic S-1B2](https://openairdocs.org/model/arctic-s-1b2) (registry code 0790208) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1004
- Airframe hours: 552
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard N. Sutliff
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 12, 1985, 1 hours before
- Departed: MRI, ANCHORAGE, AK
- Airport: MRI, Merrill

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 425 total, 286 in this make and model, 425 as pilot in command, 42 in the last 90 days, 20 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 6 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 37 °F, dew point 30 °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 19851012051359A](https://openairdocs.org/incident/19851012051359A), Oct 12, 1985: Arctic S1B2, Anchorage, AK, Substantial damage. Landed in school yard. Engine quit after descent due to unporting of fuel line. Flapper valve blocked by line cap.

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

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