# NTSB FTW82FA111: Piper PA-23-150, N1196P, Newark, TX, April 7, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: April 7, 1982, 11:30 local (17:30 UTC)
- Place: Newark, TX
- Coordinates: 33.000137, -97.440986 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.0001&lon=-97.4410&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 7, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72005
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW82FA111
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72005/pdf
- Page: https://openairdocs.org/ntsb/FTW82FA111

## Sequence of events

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

- Airframe/component/system failure/malfunction, maneuvering
  - propeller system/accessories,hub - fatigue (cause)
  - propeller system/accessories,hub - failure,total (cause)
- Engine tearaway, maneuvering
  - propeller system/accessories,blade - separation (contributing factor)
  - engine assembly - vibration (contributing factor)

## Analysis

THE PLT REPORTED A LOUD BANG WAS HEARD AND HE OBSERVED THE LEFT ENG COWL RAISED TO A VERTICAL POSITION & THE ENG DROOPED DOWNWARD. THE EXCESSIVE AMOUNT OF DRAG CAUSED THE ACFT TO BE UNCONTROLLABLE. THE PLT WAS ABLE TO GAIN CONTROL OF THE ACFT BY FEATHERING THE RIGHT ENG. A GEAR-UP LANDING WAS MADE IN A PASTURE. ONE BLADE HAD SEPARATED FROM THE LEFT PROPELLER DUE TO SEPARATION OF A FLANGE ON THE PROPELLER HUB. THE SEPARATED HUB FLANGE FAILED DUE TO HIGH CYCLIC METAL FATIGUE.

## Aircraft

- Registration: [N1196P](https://openairdocs.org/deregistered/N1196P-1982-12-11), registration cancelled 1982-12-11, S/N 23-211 (OpenAirDocs)
- Reported make and model: PIPER PA-23-150
- Registry model: [Piper PA-23](https://openairdocs.org/model/piper-pa-23) (registry code 7102302) (OpenAirDocs)
- Category: Airplane
- Serial number: 23-211
- Airframe hours: 6
- Engines: LYCOMING O-320-A1A 150 horsepower reciprocating
- Damage: Destroyed
- Flight: Instructional, Part 91
- Operator: L.E.Clark
- Registered owner: L.E.Clark
- Departed: AI, JUSTIN, TX
- Destination: AI, JUSTIN, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; commercial, flight instructor; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 2,474 total, 2,001 in this make and model, 2,387 as pilot in command, 194 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 16 knots
- Visibility: 7 statute miles
- Lowest ceiling: 1,600 ft overcast
- Temperature: 126 °F
- Altimeter: 29.00 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 19820407069409A](https://openairdocs.org/incident/19820407069409A), Apr 7, 1982: Piper PA23, Newark, TX, Destroyed. Left engine lost prop blade. Imbalance opened cowling,bent engine mounts. Kept control by high speed crash landing.

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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