# NTSB SEA87LA130: Cessna 206, N55FS, Olympia, WA, July 3, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 3, 1987, 12:48 local (19:48 UTC)
- Place: Olympia, WA
- Coordinates: 47.52032, -123.059181 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.5203&lon=-123.0592&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report October 7, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 40651
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA87LA130
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40651/pdf
- Page: https://openairdocs.org/ntsb/SEA87LA130

## Sequence of events

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

- Nose gear collapsed, landing - roll
  - reason for occurrence undetermined (cause)
- Loss of control - on ground/water, landing - roll
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

DURING LANDING ROLL THE PILOT WAS UNABLE TO MAINTAIN DIRECTIONAL CONTROL. THE AIRCRAFT VEERED TO THE SIDE OF THE RUNWAY ONTO SOFT TERRAIN. THE AIRCRAFT THEN NOSED OVER INVERTED. INVESTIGATION REVEALED THAT THE NOSE GEAR HAD COLLAPSED BUT THE REASON FOR THE FAILURE COULD NOT BE DETERMINED. THE PILOT STATED THAT HE HAD A NOSE GEAR DAMPER PROBLEM.

## Aircraft

- Registration: N55FS (not matched to a registry record)
- Reported make and model: CESSNA 206
- Category: Airplane
- Serial number: U20604333
- Engines: CONTINENTAL TSIO-520C 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert Shaffner
- Registered owner: Berry Perris
- Airworthiness certificate: Standard, Normal
- Departed: RDM, REDMOND, OR
- Airport: OLM, Olympia, runway 17, 5,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 4,500 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: 3,200 ft broken
- Temperature: 70 °F, dew point 52 °F
- Altimeter: 29.00 inHg
- Observed at: OLM

## 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 19870703083089A](https://openairdocs.org/incident/19870703083089A), Jul 3, 1987: Cessna U206, Olympia, WA, Substantial damage. Veered off rwy landing in a quartering tailwind. Nosed over when nose gear broke off. Reported shimmy damper defect

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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