# NTSB ATL05LA101: Piper PA-32-300, N646RM, Fort Myers, FL, June 17, 2005

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 17, 2005, 08:05 local (12:05 UTC)
- Place: Fort Myers, FL
- Coordinates: 26.586389, -81.863052
- Nearby events: https://openairdocs.org/map.md?lat=26.5864&lon=-81.8631&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor
- Status: Completed, report January 31, 2006
- Report: Approved by Office Director
- Parties: FAA Tampa FSDO - 35
- NTSB case key (mKey): 61729
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL05LA101
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61729/pdf
- Page: https://openairdocs.org/ntsb/ATL05LA101

## Probable cause

A loss of engine power due to the connecting rod cap separation for undetermined reasons.  Related factors were trees and the swampy terrain condition.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, climb - to cruise
  - engine assembly,connecting rod cap - separation
- Forced landing, emergency descent/landing
- In flight collision with object, emergency descent/landing
  - object - tree(s)
  - terrain condition - swampy

## Analysis

The airplane was climbing after takeoff, and the pilot heard and felt a change in the engine operation. He stated the oil pressure gauge and the oil temperature gauge showed normal readings, but the engine rpm spiked briefly beyond redline then returned to a lower rpm. The pilot headed towards the nearest airport. He stated then "something gave in the engine, and it began to vibrate the yoke. A little further, and oil began to splatter on the windshield."  The propeller continued to turn, the airplane could not maintain altitude, and the pilot glided it until it descended into trees and a swamp. Examination of the engine revealed cracks and a hole in the top of the crankcase. The No. 5 connecting rod cap was separated, pieces of the rod cap and bolts were in the engine sump, and the fracture features of the rod cap and bolts were obscured by mechanical damage. No evidence of oil leakage from any engine seals or at the propeller hub was observed. The connecting rods had been replaced during an engine major overhaul completed July 13, 1992. A new McCauley propeller was installed in accordance with Supplemental Type Certificate SA433CH on April 14, 2005, and an annual inspection was completed on the same date at an engine time since major overhaul of 1141.2 hours. The engine had accumulated 9 hours since the annual inspection, and the pilot reported there were no engine anomalies during those flights.

## Factual narrative

On June 17, 2005, about 0805 eastern daylight time, a Piper PA-32-300, N646RM, registered to and operated by the private pilot, collided with trees and the ground following a loss of engine power in the vicinity of Fort Myers, Florida. The personal flight was operated under the provisions of Title 14 CFR Part 91 with a visual flight rules (VFR) flight plan filed. Visual meteorological conditions prevailed. The private pilot and the two passengers received minor injuries, and the airplane sustained substantial damage. The flight departed Naples Municipal Airport, Naples, Florida, about 0745.

The flight was en route to Asheville, North Carolina, with VFR flight following. The pilot stated that, as the airplane was climbing between 5,000 and 6,000 feet, he heard and felt a change in the engine. He stated he the oil pressure gauge and the oil temperature gauge showed normal readings, but the engine rpm spiked briefly beyond redline then returned to a lower rpm. The pilot declared an emergency to air traffic controllers and received vectors to Southwest Florida International Airport, Fort Myers, Florida. The pilot stated he could see the airport, then "something gave in the engine, and it began to vibrate the yoke. A little further, and oil began to splatter on the windshield."  The propeller continued to turn, the airplane could not maintain altitude, and the pilot glided it until it descended into trees and a swamp.

Examination of the accident site revealed the airplane was on its right side in about three feet of water in a wooded swamp about one mile south of the runway 24 threshold. Both wings were separated from the airplane, engine oil was on the cowling, and cracks and a hole were on the top of the engine crankcase. Examination of the engine revealed the No. 5 connecting rod cap was separated, pieces of the rod cap and bolts were found in the engine sump, and the fracture features of the rod cap and bolts were obscured by mechanical damage. No evidence of oil leakage from any engine seals or at the propeller hub was observed.

Review of maintenance records revealed the connecting rods had been replaced during the engine's most recent major overhaul, which was completed July 13, 1992. A new McCauley propeller was installed in accordance with Supplemental Type Certificate SA433CH on April 14, 2005, and an annual inspection was completed on the same date at a tachometer reading of 3173 hours and an engine time since major overhaul of 1141.2 hours. The tachometer reading at the accident site was 3182,43. The pilot reported there were no engine anomalies during the 9 hours it accumulated since the annual inspection.

According to Lycoming Service Instruction No. 1009 AQ, the recommended time between overhaul periods for the IO-540-K1A5 engine is 2,000 hours operating time or the twelfth year, whichever occurs first.

## Aircraft

- Registration: [N646RM](https://openairdocs.org/deregistered/N646RM-2008-01-09), registration cancelled 2008-01-09, S/N 32-40087, built 1966 (OpenAirDocs)
- Reported make and model: Piper PA-32-300
- Registry model: [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300) (registry code 7103212) (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: 32-40087
- Airframe hours: 3182.43
- Engines: Lycoming IO-540-K1A5 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Jerald L Robinson
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 1, 2005, 9 hours before
- Departed: KAPF, Naples, FL
- Destination: KAVL, Asheville, NC
- Flight plan: VFR
- Airport: KRSW, Southwest Florida Int'l

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review August 1, 2004; seat: left; flight hours: 420 total, 310 in this make and model, 11 in the last 90 days, 10 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 3 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 75 °F
- Altimeter: 29.84 inHg
- Observed at: KRSW, 1 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 20050617015119A](https://openairdocs.org/incident/20050617015119A), Jun 17, 2005: Piper PA32300, Fort Myers, FL, Destroyed. (-23) A Piper PA-32-300, N646RM, departed naples, FL (apf) enroute to ashville, NC (avl) on VFR flight following plan. Climbing through approximately 5,500…

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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