# NTSB ATL93LA139: Piper PA-24-180, N7027P, Moncks Corner, SC, August 2, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 2, 1993, 10:30 local (14:30 UTC) - Place: Moncks Corner, SC - Coordinates: 33.189285, -79.990966 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.1893&lon=-79.9910&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 2, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 3248 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL93LA139 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/3248/pdf - Page: https://openairdocs.org/ntsb/ATL93LA139 ## Probable cause FAILURE OF THE NUMBER ONE CYLINDER AT THE CYLINDER FLANGE RADIUS. ## 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, cruise - engine assembly,cylinder - overload (cause) - engine assembly,cylinder - failure,total - Forced landing, descent - emergency - On ground/water encounter with terrain/water, landing - roll - terrain condition - high vegetation - Gear collapsed, landing - roll - landing gear,main gear - overload ## Analysis THE ENGINE LOST POWER DURING CRUISE FLIGHT AT 2000 FEET AGL. THE PILOT FORCE LANDED THE AIRPLANE IN A FIELD APPROXIMATELY 5 MILES EAST OF THE AIRPORT. THE LANDING GEAR COLLAPSED ON ROLLOUT WHEN IT STRUCK A LINE OF BUSHES. EXAMINATION OF THE ENGINE REVEALED THAT THE NUMBER ONE CYLINDER HAD BROKEN OFF IN THE FLANGE RADIUS, WHICH RESULTED IN FAILURE OF THE NUMBER ONE PISTON AT THE WRIST PIN. NO EVIDENCE OF FATIGUE WAS FOUND ON THE CYLINDER FRACTURE SURFACES. ## Factual narrative On August 2, 1993, at 1030 eastern daylight time, a Piper PA-24-180, N7027P, collided with terrain during a forced landing near Moncks Corner, South Carolina. The airplane was operated by the pilot under 14 CFR Part 91 and visual flight rules. Visual meteorological conditions prevailed at the time of the accident. A flight plan was not filed for the personal flight. There were no injuries to the private pilot, while the airplane was substantially damaged. Origination of the flight was Georgetown, South Carolina, at about 0900 on the same day. The pilot reported that the engine quit while in cruise flight at approximately 2000 ft. AGL. A forced landing was made into wooded terrain, causing damage to the airframe and landing gear. Examination of the airplane's engine, a Lycoming O-360-AT1, revealed that the number one cylinder had broken away from the engine. Also, the number one piston was broken off at the wrist pin. No evidence of fatigue was found at the cylinder fracture surfaces. ## Aircraft - Registration: [N7027P](https://openairdocs.org/deregistered/N7027P-1997-01-07), registration cancelled 1997-01-07, S/N 242174 (OpenAirDocs) - Reported make and model: PIPER PA-24-180 - Registry model: [Piper PA-24](https://openairdocs.org/model/piper-pa-24) (registry code 7102402) (OpenAirDocs) - Category: Airplane - Serial number: 24-2174 - Airframe hours: 3366 - Engines: LYCOMING O-360-A1A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Jordan, Ray - Airworthiness certificate: Standard, Normal - Last inspection: Annual, November 3, 1992, 60 hours before - Departed: GGE, GEORGETOWN, SC - Airport: 50J, Berkley County, runway 23, 3,801 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 72; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 6,500 total, 15 in this make and model, 6,200 as pilot in command, 30 in the last 90 days, 11 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 12 knots - Visibility: 10 statute miles - Lowest ceiling: 12,000 ft broken - Temperature: 88 °F, dew point 68 °F - Altimeter: 29.00 inHg - Observed at: CHS, 20 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 19930802029509A](https://openairdocs.org/incident/19930802029509A), Aug 2, 1993: Piper PA24, Moncks Corner, SC, Substantial damage. Lost power near airport. Hit bushes landing. Collapsed gear NR1 cylinder broke off at flange. Wrist pin failed. ## Other investigations on N7027P (2) 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. - [NTSB MIA68D0499](https://openairdocs.org/ntsb/MIA68D0499), Apr 28, 1968: Piper PA-24 (N7027P), Anderson, SC, substantial damage - [NTSB NYC68F0108](https://openairdocs.org/ntsb/NYC68F0108), Aug 6, 1967: Piper PA-24 (N7027P), Philadelphia, PA, substantial damage 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.