# NTSB MIA85LA222: Rockwell S-2R, N3647X, Colquitt, GA, July 30, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 30, 1985, 13:30 local (17:30 UTC)
- Place: Colquitt, GA
- Location: 31.1732° N, 84.7324° W: Placed by OpenAirDocs: center of Colquitt, GA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.1732&lon=-84.7324&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31434
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA85LA222
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31434/pdf
- Page: https://openairdocs.org/ntsb/MIA85LA222

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,cylinder - failure,total (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll

## Analysis

THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED AND THE PILOT UNINJURED WHEN THE AIRCRAFT FLIPPED UPSIDE DOWN IN A FIELD DURING A FORCED LANDING IN AN OPEN FIELD FOLLOWING ENGINE FAILURE. A POST ACCIDENT EXAMINATION OF THE ENGINE REVEALED THE NUMBER SEVEN CYLINDER FAILED. NO DETERMINATION COULD BE MADE AS TO THE CAUSE OF THE FAILURE.

## Aircraft

- Registration: [N3647X](https://openairdocs.org/aircraft/N3647X), registered now, S/N 2150R, built 1975 (OpenAirDocs)
- Reported make and model: Rockwell S-2R
- Registry model: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 2150R
- Airframe hours: 2968
- Engines: P&W R1340 SERIES 600 horsepower reciprocating
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Registered owner: Double R.Flight Srvice,Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 3, 1985, 235 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; commercial; airplane ratings: single-engine land; medical: class 1, valid medical--w/ waivers/lim; seat: front; flight hours: 2,085 total, 1,736 in this make and model, 1,736 as pilot in command, 20 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 6 knots
- Visibility: 7 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: 90 °F, dew point 75 °F
- Altimeter: 30.00 inHg
- Observed at: ABY, 42 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 19850730035089A](https://openairdocs.org/incident/19850730035089A), Jul 30, 1985: Ayres S2RR1340REST, Colquitt, GA, Destroyed. Cracked cylinder head caused engine failure. Flipped over landing in a field. No cause found for cracked cylinder.

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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