# NTSB SEA02LA103: Stinson 108-1, N8849K, Heyburn, ID, June 16, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 16, 2002, 13:00 local (19:00 UTC) - Place: Heyburn, ID - Coordinates: 42.54861, -113.75 - Nearby events: https://openairdocs.org/map.md?lat=42.5486&lon=-113.7500&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 8, 2003 - Report: Approved by Office Director - Parties: FAA-FSDO - NTSB case key (mKey): 54952 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA02LA103 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/54952/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=54952 - Page: https://openairdocs.org/ntsb/SEA02LA103 ## Probable cause A blocked fuel line due to a gasket that had disintegrated and blocked the fuel line. ## Analysis The pilot reported that the engine was running good during the run up and takeoff but climb was slow. Without warning, the engine began sputtering and the pilot was able to keep the engine running with the primer for a short time. The pilot initiated a forced landing to a field where during the landing roll, the airplane was substantially damaged. Post-accident inspection of the engine found that a non-approved cork type material gasket was used around the gascolator that had disintegrated and plugged the fuel line. After the material was removed, the engine was run under normal operating conditions. ## Factual narrative On June 16, 2002, approximately 1300 mountain daylight time, a Stinson 108-1 airplane, N8849K, registered to and being flown by a private pilot, was substantially damaged in a forced landing following a loss of engine power after takeoff from runway 02 at Burley Municipal Airport, Burley, Idaho. The forced landing site was in a field in Heyburn, Idaho, approximately 1 mile east of the airport. The pilot, who was the airplane's sole occupant, was not injured in the accident. Visual meteorological conditions were reported at Burley Municipal at 1153 and at 1253, and no flight plan had been filed for the 14 CFR 91 personal flight bound for Salt Lake Municipal Airport #2, West Jordan, Utah. In a written statement, the pilot reported that "the engine was running good during run up and takeoff but climb was slow, then without warning the engine began sputtering and I was able to keep it running with the primer for a short time[,] long enough to change direction and get to a vacant field." The temperature at Burley Municipal (elevation 4,150 feet) was reported as 30 degrees C at 1253. According to the FAA aircraft registry, the accident airplane was equipped with a Franklin 6A4150 series engine rated at 150 HP. Preliminary accident notification information indicated that the airplane had an FAA Supplemental Type Certificate (STC) authorizing use of automotive gasoline. Post-accident inspection of the engine by a Federal Aviation Administration Inspector from the Boise, Idaho, Flight Standards District Office, reported that a non-approved cork type material gasket was used around the gascolator that had disintegrated and plugged the fuel line. After the material was removed, the engine was run under normal operating conditions. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, takeoff - initial climb - fuel system,line - blocked(total) (cause) - miscellaneous,bolt/nut/fastener/clamp/spring - disintegrated (cause) - Forced landing, emergency descent/landing - In flight collision with terrain/water, emergency landing - terrain condition - ground ## Aircraft - Registration: [N8849K](https://openairdocs.org/aircraft/N8849K), registered now, S/N 108-1849, built 1947 (OpenAirDocs) - Reported make and model: Stinson 108-1 - Registry model: [Stinson 108-1](https://openairdocs.org/model/stinson-108-1) (registry code 9230404) (OpenAirDocs) - Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 108-1849 - Airframe hours: 2520 - Engines: Franklin 6A-4150-B3 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Floyd W. George - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 29, 2002, 20 hours before - Departed: BYI, Burley, ID - Destination: U42, West Jordan, UT ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; last flight review May 26, 2002; seat: left; flight hours: 1,512 total, 322 in this make and model, 21 in the last 90 days, 13 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 91 °F ## 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 20020616015329A](https://openairdocs.org/incident/20020616015329A), Jun 16, 2002: Univar 1081, Burley, ID, No damage. (-23) Shortly after takeoff from Burley, Idaho airport (byi), pilot experienced engine failure and landed in a field in heyburn, Idaho, about a mile from byi.… ## Other investigations on N8849K (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 CHI69D0312](https://openairdocs.org/ntsb/CHI69D0312), Oct 2, 1968: Stinson 108-1 (N8849K), Northbrook, IL, substantial damage ## Docket (1 files) The files NTSB released with the investigation on December 31, 2002, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=54952. 290 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 290 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40446106&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF 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.