# NTSB SEA86LA108: Piper PA-36, N57608, Mattawa, WA, April 24, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: April 23, 1986, 19:00 local (Apr 24, 1986, 03:00 UTC)
- Place: Mattawa, WA
- Coordinates: 46.800197, -119.14981 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.8002&lon=-119.1498&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40391
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA108
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40391/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA108

## Sequence of events

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

- Loss of engine power, climb - to cruise
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - terrain condition - none suitable (contributing factor)
- On ground/water collision with object, landing - roll
  - object - fence

## Analysis

SHORTLY AFTER TAKEOFF A LOSS OF PWR OCCURRED ACCOMPANIED BY AN ENG VIBRATION. A FORCED LANDING WAS MADE ONTO A HIGHWAY WHERE A X-WIND EXISTED. DIRECTIONAL CONTROL WAS LOST AND THE ACFT VEERED INTO A DITCH AND STRUCK A FENCE BEFORE COMING TO A STOP. NO REASON FOR THE PWR LOSS COULD BE DETERMINED.

## Aircraft

- Registration: N57608 (not matched to a registry record)
- Reported make and model: PIPER PA-36
- Category: Airplane
- Serial number: 36-7660008
- Airframe hours: 2364
- Engines: LYCOMING IO-720-D1C 375 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 137
- Registered owner: Sun Air
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, March 1, 1986, 1,471 hours before
- Departed: S70, OTHELLO, WA
- Destination: 74WA, MATTAWA, WA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 5,070 total, 50 in this make and model, 4,992 as pilot in command, 52 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 15 knots, gusting 20
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 45 °F

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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