# NTSB ANC83FAG04: Cessna 140, N7G, Iliamna, AK, February 12, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: February 12, 1983, 13:45 local (17:45 UTC)
- Place: Iliamna, AK
- Location: 59.7568° N, 154.9111° W: Placed by OpenAirDocs: center of Iliamna, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=59.7568&lon=-154.9111&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (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): 4068
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83FAG04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4068/pdf
- Page: https://openairdocs.org/ntsb/ANC83FAG04

## Sequence of events

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

- On ground/water collision with object, takeoff
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - aborted takeoff - delayed, pilot in command (cause)
  - terrain condition - icy (contributing factor)
  - terrain condition - snow covered (contributing factor)
  - terrain condition - hidden obstruction(s) (contributing factor)

## Analysis

THE AIRCRAFT COLLIDED WITH SOME HIDDEN OBSTRUCTIONS DURING AN ABORTED TAKEOFF. TH PILOT REALIZED HIS HEAVILY LOADED AIRCRAFT WAS NOT ACCELERATING FAST ENOUGH AND ABORTED THE TAKEOFF. AFTER TURNING LEFT TO AVOID SOME METAL DRUMS, THE AIRCRAFT COLLIDED WITH A BOAT DOCK CONCEALED BY SNOW. THE TAKEOFF WAS BEING MADE ON A SNOW-COVERED FROZEN LAKE USING SKIS. AFTER THE COLLISION, THE AIRCRAFT ROTATED 180 DEGREES AND SLID TO A STOP.

## Aircraft

- Registration: [N7G](https://openairdocs.org/deregistered/N7G-2013-05-06), registration cancelled 2013-05-06, S/N 14375, built 1948 (OpenAirDocs)
- Reported make and model: CESSNA 140
- Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (registry code 2071602) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 14375
- Airframe hours: 333
- Engines: LYCOMING O-235-C 125 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard Whitman
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 1, 1983, 10 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 135 total, 59 in this make and model, 100 as pilot in command, 32 in the last 90 days, 10 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 19 °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 19830212003719A](https://openairdocs.org/incident/19830212003719A), Feb 12, 1983: Cessna 140, Iliamna, AK, Substantial damage. Unable to accelerate to liftoff speed. Aborted takeoff. Unable to steer or brake on skis struck a snow covered dock

## Other investigations on N7G (1)

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.

- [NTSB ANC89LA126](https://openairdocs.org/ntsb/ANC89LA126), Jul 21, 1989: Cessna 140 (N7G), Nyac Mine, AK, substantial damage. Probable cause: FAILURE OF THE LEFT RUDDER PEDAL BAR ASSEMBLY AND FAILURE OF THE PILOT TO MAINTAIN CONTROL OF THE AIRCRAFT. IMPROPER MAINTENANCE AND THE PILOT'S LACK OF TOTAL EXPERIENCE WERE CONSIDERED TO BE…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.