# NTSB MIA87LA228: North American AT-6D, N3771M, Panama City, FL, August 22, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 22, 1987, 10:50 local (15:50 UTC)
- Place: Panama City, FL
- Coordinates: 30.169067, -85.670341 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.1691&lon=-85.6703&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report October 7, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 31954
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87LA228
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31954/pdf
- Page: https://openairdocs.org/ntsb/MIA87LA228

## Sequence of events

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

- Loss of engine power, cruise
  - eng assembly,blower/impeller/integral supercharger - failure,total (cause)
- Forced landing, descent
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven (contributing factor)
- Nose over, landing - roll

## Analysis

THE PLT STATED THAT HE WAS INBOUND TO SANDY CREEK AIRPORT WHEN HE HEARD A LOUD BANG AND LOST POWER. ON LANDING ROLLOUT IN A FIELD THE AIRCRAFT HIT SOME SOD, FLIPPED OVER & CAME TO REST INVERTED. POST CRASH EXAMINATION OF THE ENGINE REVEALED AN INTERNAL BLOWER ASSEMBLY FAILURE.

## Aircraft

- Registration: [N3771M](https://openairdocs.org/aircraft/N3771M), registered now, S/N 88-17109 (OpenAirDocs)
- Reported make and model: NORTH AMERICAN AT-6D
- Registry model: [North American AT-6D](https://openairdocs.org/model/north-american-at-6d) (registry code 6400416) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 88-17109
- Engines: P&W R-1340 550 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Russell Akin Turner
- Airworthiness certificate: Standard, Normal
- Departed: MAI, MARIANNA, FL
- Destination: 75FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 130 total, 70 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 6 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: PFN, 12 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 19870822047279A](https://openairdocs.org/incident/19870822047279A), Aug 22, 1987: Namer AT6D, Panama City, FL, Substantial damage. Suffered an internal blower failure. Force landed in a soft field and the aircraft nosed over.

## Other investigations on N3771M (1)

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.

- [NTSB ERA22LA032](https://openairdocs.org/ntsb/ERA22LA032), Oct 24, 2021: North American AT-6D (N3771M), Pickens, SC, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing, resulting in a runway excursion and collision with rocky terrain.

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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