# NTSB NYC85LA077: Rockwell 112A, N1339J, Waynesburg, PA, March 10, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 10, 1985, 14:00 local (19:00 UTC)
- Place: Waynesburg, PA
- Coordinates: 39.890357, -80.179603 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.8904&lon=-80.1796&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35839
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC85LA077
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35839/pdf
- Page: https://openairdocs.org/ntsb/NYC85LA077

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - engine assembly - foreign object (cause)
  - maintenance,major repair - inattentive, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - flare/touchdown
  - gear extension - not performed, pilot in command
  - terrain condition - wet
  - terrain condition - high vegetation

## Analysis

THE ACFT WAS LANDED GEAR-UP IN A FLD FOLLOWING A LOSS OF PWR DURING AN INITIAL TAKEOFF CLIMB. PURPOSE OF THE FLT WAS TO CHECK THE ENG AS IT HAD BEEN DISASSEMBLED BECAUSE OF METAL CONTAMINATION FROM THE CENTER MAIN BEARING. POST ACCIDENT INSPECTION OF THE ENG DISCLOSED THE #1, #2 AND #4 CYLINDER SPARK PLUG ELECTRODES WERE PEENED WITH BROKEN OUT SECTIONS AND CERAMIC POSTS. THE RESPECTIVE CYLINDER BARRELS AND PISTON HEADS WERE FOUND BADLY MARKED. THE #3 PISTON HEAD WAS SLIGHTLY MARKED AND PEENING WAS BISIBLE ON THE VALVE HEADS. INTAKE AND EXHAUST PIPES SHOWED SCRAPE MARKS WHEN REMOVED. A 1/8 INCH PIECE OF ALUMINUM PIPE WAS FOUND INSIDE THE #4 INTAKE PIPE.

## Aircraft

- Registration: [N1339J](https://openairdocs.org/deregistered/N1339J-2013-06-13), registration cancelled 2013-06-13, S/N 339, built 1975 (OpenAirDocs)
- Reported make and model: Rockwell 112A
- Registry model: [Rockwell International 112A](https://openairdocs.org/model/rockwell-international-112a) (registry code 7630302) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 339
- Airframe hours: 1035
- Engines: LYCOMING IO-360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Jim Webb
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 9, 1985

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; airline transport; airplane ratings: multi-engine land; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 16,000 total, 20 in this make and model, 16,000 as pilot in command, 6 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 10 knots, gusting 12
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 50 °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 19850310008089A](https://openairdocs.org/incident/19850310008089A), Mar 10, 1985: Gulstm 112A, Waynesburg, PA, Substantial damage. Engine quit after liftoff. Landed wheels up in field. FOD to cylinders on first flight after major engine repair.

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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