# NTSB SEA86LA209: Let L-13, N65141, Issaquah, WA, July 24, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 24, 1986, 15:30 local (22:30 UTC)
- Place: Issaquah, WA
- Coordinates: 47.500759, -122.000663 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.5008&lon=-122.0007&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40476
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA209
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40476/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA209

## Sequence of events

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

- Undershoot, approach - vfr pattern - final approach
  - proper glidepath - misjudged, pilot in command (cause)
  - weather condition - downdraft (contributing factor)
- In flight collision with object, landing - flare/touchdown
  - object - fence (contributing factor)

## Analysis

PLT UNDERSHOT APPROACH AFTER ENCOUNTERING DOWNDRAFT, COLLIDED WITH PERIMETER FENCE.

## Aircraft

- Registration: [N65141](https://openairdocs.org/aircraft/N65141), registered now, S/N 026408 (OpenAirDocs)
- Reported make and model: LET L-13
- Registry model: [Let BLANIK L-13](https://openairdocs.org/model/let-blanik-l-13) (registry code 1360306) (OpenAirDocs)
- Category: Glider
- Serial number: 26408
- Engines: NONE NONE unknown
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Jack L. Waud
- Airworthiness certificate: Standard, Normal
- Airport: 3WA1, Skyport, runway 36, 1,800 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; private; seat: front; flight hours: 365 total, 13 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 335° at 7 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 75 °F

## 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 19860724053259A](https://openairdocs.org/incident/19860724053259A), Jul 24, 1986: Issaquah, WA, Substantial damage. Struck a fence after encountering a downdraft on final. Undershot approach.

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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