# NTSB ANC85LA169: Maule M-5, N51369, Anchorage, AK, September 2, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 2, 1985, 10:33 local (18:33 UTC)
- Place: Anchorage, AK
- Coordinates: 61.219532, -149.849807 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.2195&lon=-149.8498&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4558
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC85LA169
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4558/pdf
- Page: https://openairdocs.org/ntsb/ANC85LA169

## 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, takeoff - initial climb
  - engine assembly,cylinder - failure,total (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - soft (contributing factor)
  - terrain condition - wet (contributing factor)

## Analysis

DURING TAKEOFF, THE ENG LOST POWER AS THE ACFT WAS CLIMBING THRU APRX 400 FT. THE PLT MADE A 180 DEG TURN TO LAND BACK ON THE ARPT. HOWEVER, HE THEN REALIZED THAT THE ACFT WOULD NOT REACH THE RWY, SO HE TURNED & LANDED IN A SWAMP AREA. AN EXAM OF THE ENG REVEALED THAT THE #3 CYLINDER HAD FAILED. NO FATIGUE WAS FOUND IN THE FRACTURE AREA. THERE WERE INDICATIONS THAT THE CYLINDER HAD FAILED FROM OVERLOAD, BUT THE REASON FOR THE OVERLOAD WAS NOT VERIFIED.

## Aircraft

- Registration: N51369 (not matched to a registry record)
- Reported make and model: MAULE M-5
- Category: Airplane
- Serial number: 6025C
- Airframe hours: 1489
- Engines: CONTINENTAL IO-360-A 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Chester A. Godin
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 27, 1984, 23 hours before
- Departed: MRI
- Destination: BGQ, BIG LAKE, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 2,500 total, 2,000 in this make and model, 2,400 as pilot in command, 70 in the last 90 days, 40 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 39 °F
- Altimeter: 29.00 inHg

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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