# NTSB SEA88LA079: Mooney M20E, N7158V, The Dalles, OR, April 16, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: April 15, 1988, 23:45 local (Apr 16, 1988, 06:45 UTC)
- Place: The Dalles, OR
- Coordinates: 45.539894, -121.14994 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.5399&lon=-121.1499&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report April 25, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 40804
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA88LA079
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40804/pdf
- Page: https://openairdocs.org/ntsb/SEA88LA079

## Sequence of events

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

- Overrun, landing
  - light condition - dark night (contributing factor)
  - procedures/directives - not followed, pilot in command (cause)
  - distance - misjudged, pilot in command (cause)
  - proper touchdown point - not attained, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ravine (contributing factor)

## Analysis

ON ARRIVAL, PLT FOUND DESTINATION OBSCURED BY UNFORECAST FOG, HELD BRIEFLY, THEN DIVERTED TO AN ALTERNATE AIRPORT. ON ARRIVAL AT ALT IN DARKNESS, PLT DID NOT KNOW FREQ (UNICOM) TO ACTIVATE RWY LIGHTS. PLT MADE LOW PASS TO ACQUIRE RWY ENVIRONMENT AS FUEL STATE WAS CRITICAL. ON SIGHTING A RUNWAY, PLT EFFECTED LNDG BUT WAS WELL DOWN 4649-FT LENGTH AND OVERRAN INTO RAVINE.

## Aircraft

- Registration: [N7158V](https://openairdocs.org/deregistered/N7158V-2013-05-03), registration cancelled 2013-05-03, S/N 21-0053, built 1974 (OpenAirDocs)
- Reported make and model: MOONEY M20E
- Registry model: [Mooney M20E](https://openairdocs.org/model/mooney-m20e) (registry code 5870212) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 21-0053
- Airframe hours: 1829
- Engines: LYCOMING IO-360-A1A 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Albert K. Koenig
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 2, 1987, 35 hours before
- Departed: BYI, BURLEY, ID
- Destination: KLS, KELSO, WA
- Airport: DLS, The Dalles, runway 7, 4,649 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,833 total, 341 in this make and model, 1,722 as pilot in command, 10 in the last 90 days

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 310° at 17 knots
- Visibility: 15 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: 57 °F, dew point 52 °F
- Altimeter: 29.00 inHg
- Observed at: DLS

## 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 19880415009479A](https://openairdocs.org/incident/19880415009479A), Apr 15, 1988: Mooney M20E, The Dalles, OR, Substantial damage. Unable to land due to fog, diverted to The Dalles. Did notknow how to activate lights. Overshot runway into ravine.

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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