# NTSB SEA86LA198: Cessna 188, N5506S, Easton, WA, August 14, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 13, 1986, 18:00 local (Aug 14, 1986, 01:00 UTC)
- Place: Easton, WA
- Coordinates: 47.349124, -121.2705 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.3491&lon=-121.2705&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 40467
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA198
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40467/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA198

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - fuel system - blocked(total) (contributing factor)
  - maintenance,modification - improper, other maintenance personnel (cause)
  - aircraft performance,takeoff capability - loss,partial (contributing factor)
- Forced landing, landing
  - aborted takeoff - performed, pilot in command (contributing factor)
  - precautionary landing - initiated, pilot in command (contributing factor)
  - glider launch/tow equipment - disconnected (contributing factor)
  - load jettison - performed, pilot in command (contributing factor)
- On ground/water collision with object, landing - roll
  - object - tree(s)

## Analysis

THE TOW PLANE WITH GLIDER ATTACHED BEGAN LOSING PWR AT APRX 50 FT AGL DURING TAKEOFF. THE TOW PLT SIGNALED THE GLIDER PLT FOR TOW RELEASE. THE TWO PLTS LANDED ON THE REMAINING RWY. THE TOW PLANE SKIDDED INTO THE TREES OFF THE END OF THE RWY. INVESTIGATION AFTER THE ACC REVEALED A 1 INCH PIECE OF TEFLON TAPE BLOCKING THE INTAKE SIDE OF THE FUEL PUMP. THE GLIDER IN ATTEMPTING TO LAND ALSO COLLIDED WITH THE TREES.

## Aircraft

- Registration: [N5506S](https://openairdocs.org/deregistered/N5506S-2004-11-15), registration cancelled 2004-11-15, S/N 188-0006, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 188
- Registry model: [Cessna A188](https://openairdocs.org/model/cessna-a188) (registry code 2073004) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 188-0006
- Engines: CONTINENTAL IO 520 D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Registered owner: Darrel F. Harris
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, February 15, 1986, 50 hours before
- Airport: ESW, Easton State, runway 27, 2,640 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 178 total, 100 in this make and model, 141 as pilot in command, 90 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F
- Altimeter: 30.00 inHg

## 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 19860813085749A](https://openairdocs.org/incident/19860813085749A), Aug 13, 1986: Cessna A188, Easton, WA, Substantial damage. The engine lost power and the glider towplane struck trees during abort. Teflon tape found blocking fuel pump port

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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