# NTSB SEA07CA186: Cessna 182, N3570B, Bear Lake, ID, June 22, 2007

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: June 22, 2007, 07:25 local (13:25 UTC)
- Place: Bear Lake, ID
- Coordinates: 42.247222, -111.338333
- Nearby events: https://openairdocs.org/map.md?lat=42.2472&lon=-111.3383&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 31, 2007
- Report: Approved by Office Director
- Parties: Salt lake City FSDO
- NTSB case key (mKey): 66073
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA07CA186
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66073/pdf
- Page: https://openairdocs.org/ntsb/SEA07CA186

## Probable cause

The separation of the bolt that holds the nosewheel steering torque arm to the nose wheel strut during the takeoff roll, resulting in no nosewheel steering being available during the landing roll at the pilot's destination. Factors include the pilot's failure to notice during his preflight that the bolt was no longer properly secured in place.

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - roll/run
  - miscellaneous,bolt/nut/fastener/clamp/spring - separation (cause)
  - aircraft preflight - inadequate, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - nosewheel steering - not possible, pilot in command (cause)

## Analysis

Unbeknownst to the pilot, during the takeoff roll, the bolt that secured the nosewheel steering torque arm to the nosewheel strut separated from the aircraft. When the pilot landed at his planned destination, he had no nosewheel steering, and during his attempt to maintain directional control, the aircraft skidded sideways on the runway, resulting in substantial damage to the airframe. The bolt was later found laying on the runway from which he departed. The castellated nut and cotter pin that normally secure the bolt in place where not located. During his preflight, the pilot had failed to notice that the bolt was no longer properly secured in place.

## Factual narrative

Unbeknownst to the pilot, during the takeoff roll, the bolt that secured the nosewheel steering torque arm to the nosewheel strut separated from the aircraft. When the pilot landed at his planned destination, he had no nosewheel steering, and during his attempt to maintain directional control, the aircraft skidded sideways on the runway, resulting in substantial damage to the airframe. The bolt was later found laying on the runway from which he departed. The castellated nut and cotter pin that normally secure the bolt in place where not located. During his preflight, the pilot had failed to notice that the bolt was no longer properly secured in place.

## Aircraft

- Registration: N3570B (not matched to a registry record)
- Reported make and model: Cessna 182
- Category: Airplane
- Serial number: 33370
- Engines: Continental O-470-L reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Paul R. Thatcher
- Registered owner: Thomas Anderton
- Airworthiness certificate: Standard, Normal
- Departed: KLGU, Logan, UT
- Destination: 1U7, Bear Lake, ID
- Airport: 1U7, Bear Lake County Airport, runway 28, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; private; airplane ratings: single-engine land; medical: class 3; flight hours: 96 total, 8 in this make and model, 17 in the last 90 days, 7 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 3 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 70 °F

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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