# NTSB FTW83LA110: Piper PA-22, N1139C, Hennessey, OK, February 13, 1983

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 13, 1983, 13:42 local (19:42 UTC)
- Place: Hennessey, OK
- Coordinates: 36.100238, -97.889617 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.1002&lon=-97.8896&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 20804
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA110
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20804/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA110

## Sequence of events

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

- In flight collision with object, approach - vfr pattern - final approach
  - airport facilities,obstruction marking - unavailable (contributing factor)
  - object - wire,transmission (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
  - lack of familiarity with geographic area, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

WHILE ON A SHORT FINAL TO LAND AT A PRIVATE AG STRIP, THE ACFT STRUCK POWER LINES, THEN FLIPPED OVER & IMPACTED ON THE APCH END OF THE RWY. ALTHOUGH THE PLT WAS UNFAAMILAR WITH THE ARPT, SHE HAD BEEN BRIEFED ON THE EXISTANCE OF THE WIRES BEFORE HER DEPARTURE. THE WIRES WERE NOT MARKED.

## Aircraft

- Registration: N1139C (not matched to a registry record)
- Reported make and model: PIPER PA-22
- Category: Airplane
- Serial number: 22-975
- Airframe hours: 3473
- Engines: LYCOMING O-290-D2 135 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Stephen E. Gibson
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 27, 1983
- Departed: CHK, CHICKASHA, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,350 total, 6 in this make and model, 3,170 as pilot in command, 150 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F
- Observed at: OKC, 50 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 19830213003539A](https://openairdocs.org/incident/19830213003539A), Feb 13, 1983: Piper PA22, Hennessey, OK, Substantial damage. Struck wires on short final to an ag strip. Crashed inverted. Was warned of wires prior to flight.

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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