# NTSB SEA86LA169: Cessna 170B, Roche Harbor, WA, July 13, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 13, 1986, 16:28 local (23:28 UTC)
- Place: Roche Harbor, WA
- Coordinates: 48.529987, -123.060188 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.5300&lon=-123.0602&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40443
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA169
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40443/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA169

## 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
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - high vegetation (contributing factor)

## Analysis

THE PLT LOST DIRECTIONAL CONTROL OF THE AIRCRAFT DURING LANDING ROLLOUT WITH A CROSSWIND. THE AIRCRAFT DRIFTED TO THE LEFT OF THE RUNWAY AT WHICH TIME THE PLT APPLIED FULL AFT ELEVATOR, FULL RIGHT RUDDER AND FULL RIGHT AILERON. THE PLT REPORTED THE ACFT MADE NO RESPONSE TO THE CONTROL INPUTS SO FULL POWER WAS ADDED AND FLAPS WERE RETRACTED TO ZERO. CONTROL OF THE ACFT WAS REGAINED; HOWEVER, IT HAD ALREADY CONTACTED BUSHES ALONG THE SIDE OF THE RWY.

## Aircraft

- Registration: CFILT (not matched to a registry record)
- Reported make and model: CESSNA 170B
- Category: Airplane
- Serial number: 27061
- Airframe hours: 4170
- Engines: CONTINENTAL O-300-A 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Ian Sutcliffe
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, July 23, 1985, 50 hours before
- Departed: 75S, BURLINGTON, WA
- Destination: 9S1, ROCHE HARBOR, WA
- Airport: 9S1, Roche Harbor

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 401 total, 36 in this make and model, 314 as pilot in command, 62 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 5 knots, gusting 10
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F
- Altimeter: 29.00 inHg

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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