# NTSB SEA93LA110: Cessna 210, N9421T, Palouse, WA, May 16, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 15, 1993, 19:45 local (May 16, 1993, 02:45 UTC)
- Place: Palouse, WA
- Coordinates: 46.880157, -117.150657 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.8802&lon=-117.1507&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 13, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 41711
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA110
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41711/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA110

## Probable cause

THE PILOT IN COMMAND NOT MAINTAINING DIRECTIONAL CONTROL. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE CONTROL INTERFERENCE BY THE PASSENGER.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - control interference - continued, passenger (contributing factor)
- On ground/water collision with object, landing - roll

## Analysis

DURING THE LANDING ROLL THE PILOT WENT TO APPLY THE TOE BRAKES AND FOUND THEM ALREADY DEPRESSED. AS THE NOSEWHEEL TOUCHED DOWN THE AIRCRAFT VEERED OFF THE RIGHT SIDE OF THE RUNWAY AND SHORTLY THEREAFTER THE RIGHT WING IMPACTED A BUILDING. THE PASSENGER REPORTED TO THE PILOT THAT HE WAS ON THE BRAKES.

## Factual narrative

On May 15, 1993, at approximately 1945 hours Pacific daylight time (PDT), a Cessna 210, N9421T, registered to and operated by Wayne A. Robinson, and being flown by Brent A. Loney, a certificated private pilot, was destroyed during a collision with a hangar during landing rollout on runway 11 at the owner's private airstrip near Palouse, Washington. The pilot and owner/passenger were uninjured. Visual meteorological conditions prevailed and no flight plan had been filed. The flight, which was personal in nature, was to have been operated in accordance with the requirements set forth in 14CFR91 and originated from the accident airstrip at approximately 1815.

The pilot reported that after touchdown "when I slid my heels up from the floor to apply toe brakes they were already applied." As the pilot allowed the nosewheel to descend to the runway the aircraft veered to the right departing the runway. The pilot reported applying "left brake and full left rudder to try to get the plane back on the runway." Shortly thereafter the right wing impacted a building.

The passenger reported to the pilot that he got on the brakes initially and then got back off during the landing evolution.

## Aircraft

- Registration: [N9421T](https://openairdocs.org/deregistered/N9421T-2018-01-24), registration cancelled 2018-01-24, S/N 57221 (OpenAirDocs)
- Reported make and model: CESSNA 210
- Registry model: [Cessna 210](https://openairdocs.org/model/cessna-210) (registry code 2073402) (OpenAirDocs)
- Category: Airplane
- Serial number: 57221
- Airframe hours: 2433
- Engines: CONTINENTAL IO-470E 260 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Robinson, Wayne A.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 3, 1992, 57 hours before
- Airport: runway 29, 1,600 × 25 ft, macadam

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: right; flight hours: 216 total, 41 in this make and model, 170 as pilot in command, 14 in the last 90 days, 5 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 4 knots
- Visibility: 25 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: 73 °F, dew point 50 °F
- Altimeter: 29.00 inHg
- Observed at: PUW, 165 nm away

## 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 19930515014039A](https://openairdocs.org/incident/19930515014039A), May 15, 1993: Cessna 210, Palouse, WA, Destroyed. Veered off runway and struck a hanger on landing roll. Passenger inadvertently applied brakes on dual controls.

## Other investigations on N9421T (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 UNK64X0871](https://openairdocs.org/ntsb/UNK64X0871), Mar 10, 1964: Cessna 210 (N9421T), Port Lavaca, TX, destroyed

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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