# NTSB FTW02LA226: Cessna 150L, N10935, Manvel, TX, August 4, 2002 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: August 3, 2002, 19:00 local (Aug 4, 2002, 00:00 UTC) - Place: Manvel, TX - Coordinates: 29.479999, -95.327224 - Nearby events: https://openairdocs.org/map.md?lat=29.4800&lon=-95.3272&mi=10 - Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report May 30, 2003 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 55384 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW02LA226 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55384/pdf - Page: https://openairdocs.org/ntsb/FTW02LA226 ## Probable cause The loss of engine power for an undetermined reason. A contributing factor was the lack of suitable terrain for the forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, emergency descent/landing - reason for occurrence undetermined - Forced landing, descent - emergency - Nose gear collapsed, landing - roll - terrain condition - none suitable (contributing factor) - terrain condition - rough/uneven ## Analysis During the cross-country flight, the pilot performed a forced landing following a loss of engine power. During the landing roll, the nose landing gear collapse in the rough terrain. Examination revealed there was fuel in both fuel tanks, and the fuel was blue in color with no visual evidence of debris or contamination. The fuel selector was found in the "ON" position. When the crankshaft was rotated, there was engine continuity to the accessory case, thumb compression on each cylinder, and operation of the magneto impulse coupling. The spark plugs exhibited moderate wear. Continuity was confirmed for the throttle and mixture cables from the cockpit to the carburetor. The carburetor bowl had impact damage. The carburetor accelerator pump operated. No debris was found on the fuel screens for the gascolator or the carburetor. The reason for the loss of engine power could not be determined. ## Factual narrative On August 3, 2002, approximately 1900 central daylight time, a Cessna 150L, single-engine airplane, N10935, sustained substantial damage during a forced landing following a loss of engine power near Manvel, Texas. The airplane was owned and operated by the pilot under Code of Federal Regulations Part 91. The private pilot received minor injuries. Visual meteorological conditions prevailed for the personal cross-country flight, and flight plan was not filed. The flight departed Wharton, Texas, approximately 1830, with a planned destination of Pearland, Texas. On the Pilot/Operator Aircraft Accident report (NTSB Form 6120.1/2) the pilot reported that the flight was at 1,500 feet agl when the engine rpm decreased from 2,350 rpms to 600-700 rpms. Further, the pilot added that he was able to "get a little response by pushing and pulling on the throttle." During the landing roll, the nose landing gear collapsed in the rough terrain. The FAA inspectors, who responded to the accident site, found the airplane resting upright on the Darrington Prison property. Both wing spars were bent and the firewall was buckled. There was fuel in both fuel tanks, and the fuel was blue in color with no visual evidence of debris or contamination. The fuel selector was found in the "ON" position. When the crankshaft was rotated, there was engine continuity to the accessory case, thumb compression on each cylinder, and operation of the magneto impulse coupling. The spark plugs exhibited moderate wear. Continuity was confirmed for the throttle and mixture cables from the cockpit to the carburetor. The carburetor bowl had impact damage. The accelerator pump for the carburetor operated without discrepancies. No debris was found on the fuel screens for the gascolator or the carburetor. The aircraft was released to the owner. ## Aircraft - Registration: [N10935](https://openairdocs.org/deregistered/N10935-2020-01-31), registration cancelled 2020-01-31, S/N 15075149, built 1973 (OpenAirDocs) - Reported make and model: Cessna 150L - Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15075149 - Airframe hours: 12000 - Engines: Continental O-200-A 100 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Gerald R. Cavanough - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 2, 2002, 12 hours before - Departed: 5R5, Wharton, TX - Destination: 21T, Pearland, TX ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review March 15, 2001; seat: left; flight hours: 969 total, 35 in this make and model, 969 as pilot in command, 15 in the last 90 days, 6 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: 190° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 90 °F, dew point 72 °F - Altimeter: 29.93 inHg - Observed at: HOU, 15 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 20020803028839A](https://openairdocs.org/incident/20020803028839A), Aug 3, 2002: Cessna 150L, Manvel, TX, Substantial damage. (.19) On August 3, 2002, approximately 1900 central daylight time, a Cessna 150L, single-engine airplane, N10935, sustained substantial damage during a forced… 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.