# NTSB BFO89LA052: Mooney M-20F, N7784M, Mchenry, MD, July 1, 1989

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 1, 1989, 12:06 local (16:06 UTC)
- Place: Mchenry, MD
- Location: 39.5808° N, 79.3359° W: Placed by OpenAirDocs at GARRETT COUNTY (2G4), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.5808&lon=-79.3359&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report August 2, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 11513
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO89LA052
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11513/pdf
- Page: https://openairdocs.org/ntsb/BFO89LA052

## Probable cause

THE PILOT LANDED HARD AND COLLAPSED THE LANDING GEAR WHEN HE FAILED TO ARREST HIS DESCENT RATE DURING LANDING. AFTERWARDAS HE TRIED TO MAKE A GO-AROUND THE PILOT DID NOT OBTAIN ADEQUATE FLYING SPEED, THE AIRCRAFT STALLED AND COLLIDED WITH THE GROUND.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - flare - misjudged, pilot in command (cause)
  - recovery from bounced landing - inadequate, pilot in command (cause)
  - airspeed - not attained, pilot in command
  - stall/mush - inadvertent, pilot in command
- Gear collapsed, landing - flare/touchdown
  - landing gear - overload
  - aborted landing - attempted, pilot in command

## Analysis

THE PLT MADE THE LNDG APCH WITH FULL FLAPS AT AN AIRSPEED OF APRX 90 KTS. ACCORDING TO THE PLT, HE ENCOUNTERED WIND SHEAR AT THE RWY THRESHOLD, LANDED HARD, AND BOUNCED SEVERAL TIMES. THE LANDING GEAR COLLAPSED. THE PLT TRIED TO MAKE A GO-AROUND BUT WAS UNABLE TO CLIMB OUT OF GROUND EFFECT OR GAIN FLYING SPEED. THE ACFT STALLED AND COLLIDED WITH THE GROUND LEFT OF THE RWY. RWY 26 WAS USED. THE LOCAL WINDS WERE REPORTED AT 260 DEGS AT 5 KTS.

## Aircraft

- Registration: [N7784M](https://openairdocs.org/deregistered/N7784M-2013-05-09), registration cancelled 2013-05-09, S/N 22-0032, built 1974 (OpenAirDocs)
- Reported make and model: MOONEY M-20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 22-0032
- Airframe hours: 2760
- Engines: LYCOMING IO-360-A1A 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert L Mckeever
- Registered owner: Robert L. Mckeever
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 26, 1989, 20 hours before
- Departed: GAI, GAITHERSBURG, MD
- Airport: 2G4, Garrett County, runway 26, 2,495 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 167 total, 55 in this make and model, 140 as pilot in command, 14 in the last 90 days, 6 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 5 knots, gusting 10
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 50 °F
- Altimeter: 30.00 inHg

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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