# NTSB CHI84LA408: Piper PA-23-150, N1424P, Defiance, OH, September 30, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 30, 1984, 17:49 local (21:49 UTC)
- Place: Defiance, OH
- Coordinates: 41.280929, -84.360336 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.2809&lon=-84.3603&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): 12789
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA408
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12789/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA408

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - initial climb
  - propeller system/accessories,blade - fatigue
  - propeller system/accessories,blade - loss,partial
  - maintenance - poor, pilot of other aircraft (cause)
  - altitude - inadequate, pilot in command (contributing factor)
  - remedial action - not possible, pilot in command (contributing factor)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - tree(s)

## Analysis

DURING INITIAL TAKEOFF CLIMB AT ALT OF 300 FT AGL, 9 1/4 INCHES OF RT ENGINE PROP BLADE SEPARATED. FORCED LANDING WAS MAKE IN FIELD DURING WHICH TIME THE RT WING CONTACTED A TREE. METALLURGICAL EXAMINATION REVEALED PROGRESSIVE FATIGUE OVER 75% OF THE FRACTURED SURFACE ORIGINATING FROM TWO SMALL SHALLOW PITS ON THE CAMBERED SUFACE LEADING EDGE OF THE BLADE.

## Aircraft

- Registration: [N1424P](https://openairdocs.org/deregistered/N1424P-1989-09-01), registration cancelled 1989-09-01, S/N 23480 (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: 23-480
- Airframe hours: 4405
- Engines: LYCOMING O-320-A1A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Lance Aviation Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, September 8, 1984, 28 hours before
- Departed: DFI, DEFIANCE, OH
- Destination: OH02, MCCLURE, OH

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 25,785 total, 125 in this make and model, 209 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: 7,000 ft broken
- Temperature: 54 °F, dew point 39 °F
- Altimeter: 30.00 inHg
- Observed at: TOL, 31 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 19840930052439A](https://openairdocs.org/incident/19840930052439A), Sep 30, 1984: Piper PA23, Defiance, OH, Substantial damage. Propeller blade failed during initial climb. Gear up forced landing in field. Pilot has not returned form 6120.1.

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.

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