# NTSB FTW01LA199: John Greenlee X-Aircamper, N899JG, Healdton, OK, August 25, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 25, 2001, 07:45 local (12:45 UTC) - Place: Healdton, OK - Coordinates: 34.230175, -97.486027 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.2302&lon=-97.4860&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 29, 2003 - Report: Approved by Office Director - Parties: FAA - NTSB case key (mKey): 53145 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW01LA199 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53145/pdf - Page: https://openairdocs.org/ntsb/FTW01LA199 ## Probable cause The loss of engine power due to carburetor ice as a result of the pilot's failure to apply carburetor heat during the approach to land. Contributing factors were weather conditions conducive to carburetor icing conditions and the lack of suitable terrain for a forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, approach - vfr pattern - downwind - weather condition - carburetor icing conditions (contributing factor) - carburetor heat - not used, pilot in command (cause) - Forced landing, emergency descent/landing - On ground/water encounter with terrain/water, emergency landing - terrain condition - high vegetation - terrain condition - none suitable (contributing factor) ## Analysis The pilot was on downwind at his destination airport when he experienced a "loss of power." He attempted to "glide" around to the runway, but a "significant south wind complicated the attempt." The airplane cleared trees "by inches and mushed into the ground", about 100-200 feet short of the runway. The pilot stated that he suspected carburetor ice to have caused the loss of power. According to information on a Carburetor Icing Probability Chart, and the temperature/dew point in which the airplane was operating, "serious" carburetor ice could have been present. The vintage airplane was powered by a Ford Model "A" engine. ## Factual narrative On August 25, 2001, approximately 0745 central daylight time, a John Greenlee X-Aircamper homebuilt experimental airplane, N899JG, registered to and operated by the pilot, was substantially damaged during a forced landing following a loss of engine power while in the VFR approach pattern to the Healdton Municipal Airport, near Healdton, Oklahoma. The private pilot, who was the sole occupant, was not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The cross-country flight originated from Bowie, Texas, at 0645, and was en route to Healdton, Oklahoma. According to information provided by the pilot in the enclosed Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), the pilot was on downwind at Healdton Airport when he experienced a "loss of power." He attempted to "glide" around to the runway, but a "significant south wind complicated the attempt." The airplane cleared trees "by inches and mushed into the ground", about 100-200 feet short of the runway. The pilot stated that he suspected carburetor ice to have caused the loss of power. According to information on a Carburetor Icing Probability Chart, and the temperature/dewpoint in which the airplane was operating, a "serious icing" probability could have existed. The vintage airplane was powered by a Ford Model "A" engine. ## Aircraft - Registration: [N899JG](https://openairdocs.org/aircraft/N899JG), registered now, S/N 101, built 2000 (OpenAirDocs) - Reported make and model: John Greenlee X-Aircamper - Registry model: [Greenlee John PIETENPOL AIR CAMPER](https://openairdocs.org/model/greenlee-john-pietenpol-air-camper) (registry code 05606O7) (OpenAirDocs) - Registry engine: [Ford CONVERSION](https://openairdocs.org/engine/ford-conversion) (registry code 26701, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 101 - Airframe hours: 19 - Engines: Ford Model A 40 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: John Greenlee - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 7, 2000, 19 hours before - Departed: 0F2, Bowie, TX - Destination: F32, Healdton, OK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; injuries: none; private; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 99 total, 19 in this make and model, 73 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 160° at 7 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 72 °F - Altimeter: 29.97 inHg - Observed at: ADM ## 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 20010825023599A](https://openairdocs.org/incident/20010825023599A), Aug 25, 2001: Amtr PIETENPOLAIR, Healdton, OK, No damage. (.19) On August 25, 2001, approximately 0745 central daylight time, a john greenlee x-aircamper homebuilt experimental airplane, N899JG, registered to and… 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.