# NTSB FTW89LA147: Mooney M20K, N252WW, Marietta, OK, August 12, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 12, 1989, 13:50 local (18:50 UTC)
- Place: Marietta, OK
- Coordinates: 33.92913, -97.120162 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.9291&lon=-97.1202&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report June 28, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 22905
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW89LA147
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22905/pdf
- Page: https://openairdocs.org/ntsb/FTW89LA147

## Probable cause

THE PILOT'S DELAY IN ABORTING THE LANDING (GOING AROUND) AND HIS IMPROPER RAISING OF THE FLAPS AT AN INADEQUATE AIRSPEED.

## Sequence of events

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

- In flight collision with object, landing - aborted
  - aborted landing - delayed, pilot in command (cause)
  - raising of flaps - improper, pilot in command (cause)
  - airspeed(v2 min) - inadequate, pilot in command (cause)
  - object - tree(s)

## Analysis

DURING A LANDING, THE ACFT TOUCHED DOWN ABOUT 1/3 OF THE WAY DOWN THE RWY. THE PLT FELT UNCOMFORTABLE ABOUT THE LANDING, BUT HESITATED BEFORE ELECTING TO GO AROUND. DURING THE GO-AROUND, HE ESTABLISHED A CLIMB & BEGAN RAISING THE FLAPS, BUT WAS UNABLE TO WATCH THE FLAP INDICATOR TO STOP THE FLAPS AT THE 'TAKEOFF' POSITION. SUBSEQUENTLY, THE ACFT CRASHED IN THE TOPS OF TREES ON LOWER TERRAIN BEYOND THE DEP END OF THE RWY.

## Aircraft

- Registration: N252WW (not matched to a registry record)
- Reported make and model: MOONEY M20K
- Category: Airplane
- Serial number: 25-1060
- Engines: CONTINENTAL IO-360-MB 215 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Walter E. Gray, Inc.
- Departed: ADS, ADDISON, TX
- Airport: T40, Mcgehee Catfish, runway 17, 2,450 × 55 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; flight hours: 1,375 total, 697 in this make and model, 52 in the last 90 days, 4 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 7 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 64 °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 19890812028859A](https://openairdocs.org/incident/19890812028859A), Aug 12, 1989: Mooney M20K, Marietta, OK, Destroyed. Uncomfortable after landing, began a belated go around while reducing flaps and struck trees on climbout.

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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