# NTSB ANC88LA121: Maule M-5-210C, N307X, Kukaklek, AK, August 31, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 31, 1988, 09:30 local (17:30 UTC)
- Place: Kukaklek, AK
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 10, 1989
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5062
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88LA121
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5062/pdf
- Page: https://openairdocs.org/ntsb/ANC88LA121

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - terrain condition - loose gravel/sandy (contributing factor)
  - terrain condition - soft (contributing factor)
  - terrain condition - tundra (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - not identified, pilot in command (cause)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- Nose over, takeoff - roll/run

## Analysis

DURING THE TAKEOFF ROLL ON THE GRAVEL BAR THE AIRPLANE CROSSED THE GRAVEL AREA ON TO THE SOFT TUNDRA. THE PILOT THEN LOST DIRECTIONAL CONTROL OF THE AIRPLANE. THE AIRPLANE NOSED OVER ON ITS BACK.

## Aircraft

- Registration: [N307X](https://openairdocs.org/deregistered/N307X-1989-07-22), registration cancelled 1989-07-22, S/N 6123C (OpenAirDocs)
- Reported make and model: MAULE M-5-210C
- Registry model: [Maule M-5-210C](https://openairdocs.org/model/maule-m-5-210c) (registry code 5460134) (OpenAirDocs)
- Category: Airplane
- Serial number: 6123C
- Airframe hours: 1383
- Engines: CONTINENTAL IO-360-D 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Norman Wilder
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 31, 1988, 20 hours before
- Departed: PORT ALSWORTH, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,860 total, 850 in this make and model, 1,820 as pilot in command, 77 in the last 90 days, 24 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 100 statute miles
- Lowest ceiling: 8,000 ft broken
- Temperature: 46 °F, dew point 37 °F

## 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 19880831038379A](https://openairdocs.org/incident/19880831038379A), Aug 31, 1988: Maule M5210C, King Salmon, AK, Substantial damage. Landed on a gravel bar overshot and proceeded into soft tundra and nosed over.

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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