# NTSB SEA87FA064: Cessna 402A, N4549Q, Walla Walla, WA, March 17, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: March 17, 1987, 09:00 local (17:00 UTC)
- Place: Walla Walla, WA
- Coordinates: 46.110057, -118.299621 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.1101&lon=-118.2996&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 27, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 40516
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA87FA064
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40516/pdf
- Page: https://openairdocs.org/ntsb/SEA87FA064

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - level off - misjudged, pilot in command (cause)
- Main gear collapsed, landing - roll
  - landing gear,main gear attachment - overload

## Analysis

DURING LNDG ROLL THE RT MAIN LNDG GEAR OF THE CESSNA 402A COLLAPSED. VISUAL INSPECTION OF THE BELL CRANK ASSEMBLY REVEALED FRACTURE SURFACES SIMILAR TO THOSE OF INSTANTANEOUS OVERLOAD.

## Aircraft

- Registration: [N4549Q](https://openairdocs.org/deregistered/N4549Q-2013-06-21), registration cancelled 2013-06-21, S/N 402A0049, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA 402A
- Registry model: [Cessna 402A](https://openairdocs.org/model/cessna-402a) (registry code 207590M) (OpenAirDocs)
- Registry engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 402A0049
- Airframe hours: 8520
- Engines: CONTINENTAL TSIO-520-E 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Richardson Aviation, Inc.
- Registered owner: Richardson Aviation
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 1, 1987
- Departed: PSC, PASCO, WA
- Destination: ALW, WALLA WALLA, WA
- Flight plan: IFR
- Airport: ALW, Walla Walla City County, runway 20, 7,186 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 5,425 total, 3,450 in this make and model, 5,240 as pilot in command, 410 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 14 knots
- Visibility: 40 statute miles
- Lowest ceiling: 2,800 ft broken
- Temperature: 50 °F, dew point 43 °F
- Altimeter: 29.00 inHg
- Observed at: ALW

## 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 19870317006349A](https://openairdocs.org/incident/19870317006349A), Mar 17, 1987: Cessna 402A, Walla Walla, WA, Substantial damage. Right main gear collasped on landing. Bell crank assembly broke on instant overload.

## Other investigations on N4549Q (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 SEA79FA038](https://openairdocs.org/ntsb/SEA79FA038), Jun 7, 1979: Cessna 402 (N4549Q), Wenatchee, WA, substantial damage

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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