# NTSB LAX84LA449: Cessna 206, N5122U, Sacramento, CA, August 22, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 22, 1984, 10:53 local (17:53 UTC)
- Place: Sacramento, CA
- Coordinates: 38.689743, -121.600326 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6897&lon=-121.6003&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24380
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA449
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24380/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA449

## Sequence of events

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

- Loss of control - on ground/water, taxi - to takeoff
  - fuselage,seat - unlocked (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- On ground/water collision with object, taxi - to takeoff
  - object - aircraft parked/standing

## Analysis

WHILE TAXIING FOR TAKEOFF THE PILOT'S SEAT SLID AFT CAUSING THE LOSS OF DIRECTIONAL CONTROL AND SUBSEQUENT COLLISION WITH OTHER ACFT. THE PLT STATED THAT WHEN SHE ENTERED THE ACFT SHE MOVED THE SEAT FULL FORWARD AND THAT THE SEAT LOCKINGMECHANISM WAS NOT PROPERLY ENGAGED. THE TAXIING ACFT STRUCK AND SUBSTANTIALLY DAMAGED A BEECH A-36 AND A CESSNA 182.

## Aircraft

- Registration: [N5122U](https://openairdocs.org/deregistered/N5122U-2005-07-15), registration cancelled 2005-07-15, S/N 206-0122, built 1964 (OpenAirDocs)
- Reported make and model: CESSNA 206
- Registry model: [Cessna 206](https://openairdocs.org/model/cessna-206) (registry code 2073302) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 206-0122
- Airframe hours: 4100
- Engines: CONTINENTAL IO-520 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: John & Helen Saulsbury
- Airworthiness certificate: Standard, Normal
- Departed: SMF
- Destination: O42, WOODLAKE, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 392 total, 42 in this make and model, 312 as pilot in command, 10 in the last 90 days, 7 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 57 °F
- Altimeter: 29.00 inHg
- Observed at: SMF

## 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 19840822042839A](https://openairdocs.org/incident/19840822042839A), Aug 22, 1984: Cessna 206CESSNA, Sacramento, CA, Substantial damage. During taxi pilots seat skid rearward. Struck 6650L and 6530M. Wrong seat back with wrong locking mechanism.

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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