# NTSB SEA90LA177: Cessna 172M, N9895V, Lewiston, ID, September 9, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 9, 1990, 11:10 local (18:10 UTC)
- Place: Lewiston, ID
- Coordinates: 46.15929, -116.919067 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.1593&lon=-116.9191&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 41272
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA90LA177
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41272/pdf
- Page: https://openairdocs.org/ntsb/SEA90LA177

## Probable cause

THE FAILURE OF A NOSE LANDING GEAR FORK, WHICH RESULTED IN THE PILOT'S LOSS OF DIRECTIONAL CONTROL, AND A NOSE-OVER AFTER AN EXCURSION FROM THE RUNWAY.

## Sequence of events

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

- Loss of control - on ground/water, landing - flare/touchdown
  - landing gear,nose gear strut - failure,total (cause)
  - ground loop/swerve - uncontrolled, pilot in command (contributing factor)
  - remedial action - not possible (contributing factor)
- Nose over, landing - roll

## Analysis

THE PILOT OF THE CESSNA 172 LOST DIRECTINAL CONTROL WHEN HE LOWERED THE NOSE-WHEEL TO THE RUNWAY AFTER A NORMAL LANDING. THE NOSE-STRUT FORK FAILED AT THAT TIME, CAUSING AN EXCURSION OFF THE LEFT SIDE OF THE RUNWAY. EVIDENCE INDICATED A FAILURE OF THE CASTING ALONG A CASTING LINE ON THE NOSE WHELL FORK.

## Aircraft

- Registration: [N9895V](https://openairdocs.org/aircraft/N9895V), registered now, S/N 17264550, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 725842
- Engines: LYCOMING O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Sunrise Aviation
- Registered owner: Unkown
- Departed: PSC, PASCO, WA
- Flight plan: VFR
- Airport: LWS, Lewiston, runway 8, 6,512 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; student; medical: class 3, valid medical--no waivers/lim.; flight hours: 47 total, 47 in this make and model, 33 in the last 90 days, 17 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °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 19900909038709A](https://openairdocs.org/incident/19900909038709A), Sep 9, 1990: Cessna 172M, Lewiston, ID, Substantial damage. Aircraft veered sharply off the runway on landing and nosed over. Nosewheel fork had broken at touchdown.

## Other investigations on N9895V (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 SEA00LA113](https://openairdocs.org/ntsb/SEA00LA113), Jun 22, 2000: Cessna 172M (N9895V), Wallace, ID, substantial damage. Probable cause: The pilot's failure to maintain airspeed and his failure to maintain clearance from the trees. Related factors were trees and mountainous terrain.

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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