# NTSB CHI87DEE02: Piper PA-23-250, N6955Y, Crestwood, IL, October 9, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: October 9, 1986, 04:20 local (09:20 UTC)
- Place: Crestwood, IL
- Coordinates: 41.619388, -87.719345 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.6194&lon=-87.7193&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13551
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DEE02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13551/pdf
- Page: https://openairdocs.org/ntsb/CHI87DEE02

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - aircraft parked/standing

## Analysis

THE AIRCRAFT WAS FLOWN WITHOUT AUTHORIZATION FROM THE OWNER BY UNKNOWN PERSON(S). UPON LANDING, DIRECTIONAL CONTROL WAS LOST. THE AIRCRAFT SKIDDED OFF THE RUNWAY INTO AN AIRCRAFT TIE-DOWN AREA AND COLLIDED WITH A PARKED AIRCRAFT.

## Aircraft

- Registration: [N6955Y](https://openairdocs.org/aircraft/N6955Y), registered now, S/N 27-4320, built 1969 (OpenAirDocs)
- Reported make and model: PIPER PA-23-250
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 274320
- Airframe hours: 835
- Engines: LYCOMING IO-540-C4B5 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Registered owner: Vee-Jay Products, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 9, 1985, 14 hours before
- Airport: 3HW, Howell, runway 13, 3,500 × 40 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; medical: unknown, unknown

## Weather

- Conditions: Visual (VMC), Night/dark

## 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 19861009048449A](https://openairdocs.org/incident/19861009048449A), Oct 9, 1986: Piper PA23250, Crestwood, IL, Substantial damage. The aircraft veered off the side of the runway and hit a parked plane, N52385. Stolen aircraft. Pilot unknown.

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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