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Accidents · NTSB ERA10LA070 · Final report

Piper PA28-151 accident near Port Charlotte, Florida, November 20, 2009

On November 20, 2009 at about 4:30 pm local time, a Piper PA28-151, registered N41765, was substantially damaged in an accident during enroute (cruise) near Port Charlotte, Florida. It was a personal flight under general aviation rules (Part 91). No one was hurt; 3 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

A partial loss of engine power due to the separation of the spark plug hole helicoil from the bottom position of the No. 3 cylinder for undetermined reasons.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
November 20, 2009 · about 4:30 pm local time
Place
Port Charlotte, Florida · map
Type
Accident
Injuries
No one was hurt; 3 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA28-151 · all PA28-151s on the register
Registration
N41765 · no longer on the register · serial 28-7415327
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

During cruise flight, the helicoil of the No. 3 cylinder bottom spark plug separated for undetermined reasons, resulting in the spark plug separating from the engine and the partial loss of engine power. The pilot maneuvered the airplane for a forced landing to a clearing, but collided with trees short of his intended landing point. No determination was made as to when the helicoil was installed. The engine was overhauled about 17 years prior to the accident, and had accumulated approximately 2,142 hours at the time of the accident.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Loss of engine power (partial) during enroute (cruise) defining event
  2. Off-field or emergency landing during emergency descent

The NTSB's findings

  • cause Aircraft › Aircraft power plant › Engine (reciprocating) › Recip eng cyl section › Failure

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane; rotorcraft: helicopter
  • Flight time: 303 hours in all; 87 in this make and model; 36 in the last 90 days; 10 in the last 30 days; 194 as pilot in command
  • Last flight review: September 30, 2009
  • Medical certificate: Class 2 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 12,682 hours
  • Last inspection: annual inspection, October 26, 2009; 2 hours since
  • Maximum gross weight: 2,325 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-320-E3D (piston); 0 hours total
  • Operator: Universel Technologies/Unitec INC

The flight

  • Departed from: PGD Punta Gorda FL at 4:00 pm
  • Destination: PGD Punta Gorda FL
  • Flight plan: none
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 030° at 4 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 81°F (27°C), dew point 64°F (18°C)
  • Altimeter: 30.03 inHg
  • Observation at 4:53 pm from PGD

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Other NTSB records under N41765 the same tail number, which may have belonged to a different aircraft at the time

1986-12-06CHI87LA043 · accident near Marquette, MI · substantial damage · no injuries

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.