# NTSB NYC05LA139: Terrio Pober Jr Ace, N37KT, Oxford, CT, August 27, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 27, 2005, 13:15 local (17:15 UTC) - Place: Oxford, CT - Coordinates: 41.49139, -73.08583 - Nearby events: https://openairdocs.org/map.md?lat=41.4914&lon=-73.0858&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report May 30, 2006 - Report: Approved by Office Director - Parties: FAA/FSDO - NTSB case key (mKey): 62346 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC05LA139 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62346/pdf - Page: https://openairdocs.org/ntsb/NYC05LA139 ## Probable cause A fractured oil pressure line, which resulted in the fracture of the number 3 cylinder connecting rod bearing, and subsequent loss of engine power. ## 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 - lubricating system,oil line - fractured (cause) - engine assembly,bearing - fractured - Forced landing, emergency descent/landing - In flight collision with object, emergency landing - object - tree(s) ## Analysis While in cruise flight, at an altitude of 3,500 feet, the engine began to lose oil pressure, followed shortly thereafter by a "clicking" sound. The propeller then stopped turning, and the pilot immediately turned toward the airport for a forced landing. He then realized that he did not have sufficient altitude to glide to the airport, and selected a corn field to perform a forced landing to. Upon touchdown, the airplane bounced "hard" and continued down the sloped field, until it impacted trees. Examination of the engine revealed the copper oil pressure line fractured at its fitting, and the number 3 cylinder connecting rod bearing was also fractured. Examination of the airplane's maintenance logbooks revealed entries from September 4, 2001 to August 26, 2005. The August 26th entry stated, "cleaned plugs," and the entry prior to that, on November 23, 2004, was for an "oil change." The most recent airworthiness inspection was performed by the pilot/repairman on September 8, 2004, during which no abnormalities were noted. The airplane accumulated 88.8 hours since the inspection. ## Factual narrative On August 27, 2005, at 1315 eastern daylight time, an amateur built Pober Jr Ace, N37KT, was substantially damaged during a forced landing following a loss of engine power near Oxford, Connecticut. The certificated private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the flight which originated at the Albany International Airport (ALB), Albany, New York, and destined for the Goodspeed Airport (42B), East Haddam, Connecticut. The personal flight was conducted under 14 CFR Part 91. According to the pilot, he was flying at an altitude of 3,500 feet, just northeast of Waterbury-Oxford Airport's (OXC) airspace, when the engine began to lose oil pressure, followed shortly thereafter by a "clicking" sound. The propeller then stopped turning, and the pilot immediately turned toward OXC for a forced landing. He then realized that he did not have sufficient altitude to glide to the airport, so he selected a corn field to land in. Upon touchdown, the airplane bounced "hard" and continued down the sloped field, until it impacted trees. A Federal Aviation Administration inspector examined the engine after the accident. According to the inspector, the copper oil pressure line had fractured at its fitting, and the number 3 cylinder connecting rod bearing was also fractured. A hole was noted in the oil sump and a coating of oil was observed on the airplane. A functional test of the oil pump revealed no mechanical deficiencies. Examination of the airplane's maintenance logbooks revealed entries from September 4, 2001 to August 26, 2005. The August 26th entry stated, "cleaned plugs," and the entry prior to that, on November 23, 2004, was for an "oil change." The most recent airworthiness inspection was performed by the pilot/repairman on September 8, 2004, during which no abnormalities were noted. The airplane accumulated 88.8 hours since the inspection. ## Aircraft - Registration: [N37KT](https://openairdocs.org/aircraft/N37KT), registered now, S/N 1, built 2001 (OpenAirDocs) - Reported make and model: Terrio Pober Jr Ace - Registry model: [Terrio Kenneth POBER JR ACE](https://openairdocs.org/model/terrio-kenneth-pober-jr-ace) (registry code 0561075) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 001 - Airframe hours: 337 - Engines: Lycoming O-235 118 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Kenneth Terrio - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 1, 2004, 97 hours before - Departed: ALB, Albany, NY - Destination: 42B, East Haddam, CT ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 72; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review August 1, 2005; seat: left; flight hours: 335 total, 321 in this make and model, 222 as pilot in command, 19 in the last 90 days, 13 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 9 knots, gusting 15 - Visibility: 10 statute miles - Temperature: 75 °F, dew point 57 °F - Altimeter: 30.12 inHg - Observed at: OXC, 5 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 20050827019929A](https://openairdocs.org/incident/20050827019929A), Aug 27, 2005: Amtr POBERJRACE, Watertown, CT, Substantial damage. (-23) While in route from albany, NY (alb) to goodspeed airport (42B) aircraft, registration number N37KT, was flying at 3500FT cruise, just north east of… 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.