# NTSB SEA92LA133: Mooney M20C, N5794Q, Blakely Island, WA, June 23, 1992

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 23, 1992, 11:00 local (18:00 UTC)
- Place: Blakely Island, WA
- Coordinates: 48.559169, -122.799018 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.5592&lon=-122.7990&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report September 28, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42839
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42839/pdf
- Page: https://openairdocs.org/ntsb/SEA92LA133

## Probable cause

THE PILOT IN COMMAND'S NOT MAINTAINING THE PROPER RATE OF DESCENT AND NOT MAINTAINING DIRECTIONAL CONTROL, AND SEPARATION OF THE NOSE GEAR STRUT AND OVERLOAD OF THE RIGHT MAIN GEAR STRUT.  FACTORS CONTRIBUTING TO THE ACCIDENT WERE:  WEATHER CONDITIONS: TAILWIND AND DOWNDRAFT, AND THE PILOT IN COMMAND'S SELECTION OF THE WRONG RUNWAY.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - weather condition - tailwind (contributing factor)
  - wrong runway - selected, pilot in command (contributing factor)
  - weather condition - downdraft (contributing factor)
  - proper descent rate - not maintained, pilot in command (cause)
- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
- Gear collapsed, landing - roll
  - landing gear,nose gear strut - separation (cause)
  - landing gear,main gear strut - overload (cause)

## Analysis

UPON ARRIVAL AT THE AIRPORT THE PILOT SET UP TO LAND WITH A TAILWIND COMPONENT. DURING THE FLARE A DOWNDRAFT WAS ENCOUNTERED AND THE AIRCRAFT LANDED HARD. THE PILOT ATTEMPTED A GO AROUND AND THEN ABORTED THE ATTEMPT DURING WHICH THE AIRCRAFT DEPARTED THE RIGHT SIDE OF THE RUNWAY. AFTER LEAVING THE RUNWAY THE NOSE GEAR SEPARATED FROM THE AIRCRAFT AND THE RIGHT MAIN LANDING GEAR STRUT COLLAPSED.

## Aircraft

- Registration: [N5794Q](https://openairdocs.org/deregistered/N5794Q-2003-05-28), registration cancelled 2003-05-28, S/N 3099 (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Category: Airplane
- Serial number: 3099
- Airframe hours: 1293
- Engines: LYCOMING O-360-A1D 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Brees, Eunice G.
- Registered owner: Brees, Fred N.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 11, 1992, 5 hours before
- Departed: BFI, SEATTLE, WA
- Airport: S08, Blakely Island Airport, runway 19, 2,000 ×  ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 750 total, 750 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F
- Altimeter: 29.00 inHg
- Observed at: FHR, 9 nm away

## 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 19920623021579A](https://openairdocs.org/incident/19920623021579A), Jun 23, 1992: Mooney M20C, Blakely Island, WA, Substantial damage. Downdraft on final landing downwind impacted hard on runway lost control. Ran off runway. Collapsed nose and main.

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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