# NTSB LAX05CA104: Piper PA-32-301, N8339P, Williams, AZ, February 27, 2005

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: February 27, 2005, 09:51 local (16:51 UTC)
- Place: Williams, AZ
- Coordinates: 35.302223, -112.193885
- Nearby events: https://openairdocs.org/map.md?lat=35.3022&lon=-112.1939&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 8, 2005
- Report: Approved by Office Director
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 61076
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX05CA104
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61076/pdf
- Page: https://openairdocs.org/ntsb/LAX05CA104

## Probable cause

the pilot's improper ground handling procedure and failure to ensure the magnetos were off prior to movement of the propeller.

## Sequence of events

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

- Miscellaneous/other, standing - starting engine(s)
  - aircraft handling - improper, pilot in command (cause)
  - miscellaneous equipment - activated, pilot in command (cause)
- On ground/water collision with object, taxi
  - object - vehicle

## Analysis

The airplane collided on the ground with obstacles after the engine started following the pilot's movement of the propeller by hand.  When the pilot initially attempted to start the engine the starter did not properly engage.  The pilot exited the airplane and moved the propeller by hand.  Two passengers remained in the airplane's rear seats.  The transient parking area was equipped with tie down chains, but the pilot had not secured the airplane.  The engine suddenly started when the pilot turned the propeller, the pilot fell down, and the airplane commenced moving with increasingly rapid speed at near full engine power.  After the runaway airplane rolled about 300 feet and nearly collided with two commuter-type airplanes and dozens of passengers/bystanders, the airplane impacted the side of an unoccupied horse trailer.

## Factual narrative

On February 27, 2005, about 0951 mountain standard time, a Piper PA-32-301, N8339P, registered to a private individual, impacted a trailer at the H. A. Clark Memorial Field, Williams, Arizona.  Visual meteorological conditions prevailed.  The runaway airplane was substantially damaged during the collision.  The pilot had been standing in front of the airplane when the accident sequence began.  He had inadvertently started the airplane's engine by partially rotating the propeller with his hand.  The two occupants/passengers inside the airplane were positioned in the most rearward (fifth and sixth) seats.  The pilot-operator held a commercial pilot certificate.  He received minor injuries upon falling to the ground as the airplane commenced moving under power.  The passengers were not injured.  The intended personal flight to Rialto, California, was performed under the provisions of 14 CFR Part 91.  No flight plan was filed.  The flight was originating at the time of the accident.

According to the airport manager, the pilot had boarded the airplane with his passengers for their planned flight.  When the pilot was unable to start the engine, he exited the airplane and commenced hand propping the propeller.  The engine started, revved up to what sounded like near full power, and the airplane accelerated across the tarmac.  After rolling about 300 feet and nearly colliding with two commuter-type airplanes and dozens of passengers/bystanders, the airplane impacted the side of an unoccupied horse trailer on the airport.

The airport manager also stated that the transient parking area where the accident airplane had been parked was equipped with functional tie down chains.  Evidently, the chains had not been used to secure the airplane.

The pilot reported to the National Transportation Safety Board investigator that, when he initially tried to start the airplane, the starter did not properly engage.  The airplane's battery was not dead.  Therefore, the pilot decided to rotate the propeller by hand in an effort at resolving the apparent starter engagement problem.  He did not intend to hand prop the propeller to start the engine.  However, when he moved the propeller the engine suddenly started.

## Aircraft

- Registration: [N8339P](https://openairdocs.org/deregistered/N8339P-2007-07-11), registration cancelled 2007-07-11, S/N 32-8106046 (OpenAirDocs)
- Reported make and model: Piper PA-32-301
- Registry model: [Piper PA-32-301](https://openairdocs.org/model/piper-pa-32-301) (registry code 7103207) (OpenAirDocs)
- Category: Airplane
- Serial number: 32-8106046
- Engines: Lycoming IO-540-K1G5 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert H. Christman
- Registered owner: James E. Ott
- Airworthiness certificate: Standard, Normal
- Departed: P32, Williams, AZ
- Destination: L67, Rialto, CA
- Airport: P32, H. A. Clark Memorial Field

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; commercial; airplane ratings: multi-engine land, single-engine land; medical: class 3; last flight review November 24, 2004; flight hours: 3,000 total, 1,500 in this make and model, 15 in the last 90 days, 3 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none

## 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 20050227017759A](https://openairdocs.org/incident/20050227017759A), Feb 27, 2005: Piper PA32301, Williams, AZ, Destroyed. (-23) On February 27, 2005, [privacy data omitted] the pilot of N8339P, a PA32-32-301 was unable to start the aircraft because of a dead battery. The pilot…

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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