# NTSB NYC98LA149: Cessna 152, N69193, Philippi, WV, July 20, 1998 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 19, 1998, 20:35 local (Jul 20, 1998, 00:35 UTC) - Place: Philippi, WV - Location: 39.1473° N, 80.0504° W: Placed by OpenAirDocs: center of Philippi, WV, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=39.1473&lon=-80.0504&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 15, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 43212 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC98LA149 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/43212/pdf - Page: https://openairdocs.org/ntsb/NYC98LA149 ## Probable cause Was the failure of an exhaust valve. A factor in the accident was the unsuitable landing area encountered by the pilot. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - mech failure/malf, maneuvering - engine assembly,valve,exhaust - failure,total (cause) - Forced landing, descent - emergency - Nose gear collapsed, emergency landing - unsuitable terrain or takeoff/landing/taxi area - encountered, pilot in command (contributing factor) ## Analysis The student pilot and flight instructor were performing maneuvers when the engine started to lose power. The flight instructor took control of the airplane and made a forced landing in an open field with uneven terrain. During ground roll, the airplane encountered rising terrain and the nose landing gear collapsed rearward. Examination of the airplane engine revealed that the number two exhaust valve was stuck. The head was missing from the valve stem, and multiple impact marks were found on the top of the piston. Portions of the valve head were recovered in the exhaust and intake manifolds. The cylinder had been replaced 172 hours prior to the accident. The numbers 1, 3, and 4 cylinders had been replaced 51 hours prior to the accident. ## Factual narrative On July 19, 1998, about 2035 eastern daylight time, a Cessna 152, N69193, was substantially damaged during a forced landing near Philippi, West Virginia. The certificated flight instructor and student pilot were not injured. Visual meteorological conditions prevailed for the dual instruction flight. No flight plan had been filed for the local flight which originated from Benedum Field, Clarksburg, West Virginia, about 1945, and was conducted under 14 CFR Part 91. In the NTSB Form 6120.1/2, Pilot/operator Aircraft Accident Report, the flight instructor reported that the engine lost power and dropped to 1,300 RPM. The airplane was unable to maintain altitude, and a forced landing was performed on an uneven field, during which the nose landing gear collapsed. An inspector from the Federal Aviation Administration (FAA), reported that the airplane touched down on the main landing gear, on the level portion of a field. It then encountered rising terrain, where the nose wheel dug into the ground, collapsed rearward, and punctured the lower fuselage. The left main landing gear was twisted in the airplane and skin wrinkles were observed above the fuselage attach point. In addition, the engine mounts were bent and the firewall was wrinkled. The airplane was equipped with a Lycoming O-235-L2C engine. The FAA Inspector reported that examination of the engine revealed the number 2 exhaust valve was stuck in the valve guide, and the valve head had separated from the valve stem. The valve guide with valve stem stuck in it was loose in the engine and fell out of the engine when the valve cover was removed. The portion of the valve guide that was exposed in the rocker arm area was covered with a carbon like substance similar to coking. Portions of the valve head were recovered from the exhaust and intake manifolds The number 2 cylinder had been installed on October 21, 1997, 172.3 hours prior to the accident. The numbers 1, 3, and 4 cylinders were installed on March 2, 1998, 51 hours prior to the accident. The chief inspector for KCI Aviation reported that he examined the other intake and exhaust valve guides from the rocker arm side of the cylinders, and none had any coking visible on them. ## Aircraft - Registration: [N69193](https://openairdocs.org/deregistered/N69193-2007-10-05), registration cancelled 2007-10-05, S/N 15282542, built 1978 (OpenAirDocs) - Reported make and model: Cessna 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 15282542 - Airframe hours: 5592 - Engines: Lycoming O-235-N2C 105 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Kci Aviation - Airworthiness certificate: Standard, Utility - Last inspection: Annual, April 23, 1998, 73 hours before - Departed: CKB, CLARKSBURG, WV ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 31; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 1,348 total, 684 in this make and model, 1,228 as pilot in command, 138 in the last 90 days, 60 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 61 °F - Altimeter: 30.00 inHg - Observed at: CKB, 14 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 19980719016209A](https://openairdocs.org/incident/19980719016209A), Jul 19, 1998: Cessna 152, Philippi, WV, Substantial damage. (.4) On July 19, 1998, about 2035 eastern daylight time, a Cessna 152, N69193, was substantially damaged during a forced landing near Philippi, west Virginia.… ## Other investigations on N69193 (1) 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 NYC80DA059](https://openairdocs.org/ntsb/NYC80DA059), Jul 19, 1980: Cessna 152 (N69193), Perry, NY, 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.