# NTSB CHI93LA344: Beech 19A, N6130N, Troy, MO, August 28, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 28, 1993, 07:45 local (12:45 UTC) - Place: Troy, MO - Coordinates: 38.970226, -90.980987 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.9702&lon=-90.9810&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report August 30, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 9300 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI93LA344 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9300/pdf - Page: https://openairdocs.org/ntsb/CHI93LA344 ## Probable cause THE PILOT'S USE OF IMPROPER FUEL IN THE AIRPLANE. WET TURF ON THE RUNWAY WAS A RELATED FACTOR. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - nonmechanical, takeoff - roll/run - fluid,fuel grade - improper (cause) - refueling - improper, pilot in command (cause) - Overrun, takeoff - aborted - airport facilities,runway/landing area condition - wet (contributing factor) - On ground/water collision with object, takeoff - aborted - object - fence - On ground/water encounter with terrain/water, takeoff - aborted - terrain condition - rough/uneven ## Analysis THE PILOT ELECTED TO ABORT THE TAKEOFF, WHEN HE REALIZED THE AIRPLANE WAS NOT ACCELERATING PROPERLY. BRAKING ACTION WAS NOT EFFECTIVE WITH DEW ON THE GRASS. THE AIRPLANE OVERRAN THE RUNWAY, IMPACTING A FENCE AND TERRAIN OFF THE END OF THE RUNWAY. SUBSEQUENT EXAMINATION REVEALED FUEL IN THE SYSTEM THAT WOULD NOT OPERATE THE ENGINE AT RATED RPM, WHEN TESTED. THE FUEL WAS CHECKED FOR CONTAMINATION, BUT NONE WAS FOUND. THE AIRCRAFT DID NOT HAVE AN STC FOR OPERATION WITH AUTOMOTIVE FUEL. ## Factual narrative On August 28, 1993, at 0745 central daylight time, a Beech 19A, N6130N, registered to Flying Muskateers of Troy, Missouri, and operated by a student pilot, experienced a rejected takeoff on runway 8 (2,200' wet/turf) at Troy, Missouri. The airplane sustained substantial damage when it exited the end of the runway, impacted a fence, and crossed a gravel road. The student pilot reported no injuries. The solo instructional 14 CFR Part 91 flight was operating in visual meteorological conditions. No flight plan was on file. The local flight was originating at the time of the accident. The pilot originally told the FAA inspector that on takeoff he became concerned that the airplane was not accelerating well and elected to abort the takeoff. He stated that the dew of the turf resulted in poor braking action and the airplane overran the departure end of the runway, and impacted a fence and terrain off the end of the runway. He also stated that he was concerned about the possibility of fuel contamination. Additional attempts to contact the pilot or to get him to make a written statement concerning circumstances surrounding the accident were not successful. He did not answer repeated attempts to contact him by mail or by telephone. During an inspection of the airplane yellow colored fuel was found in the left tank. Blue/green color fuel was found in the right tank. Yellow fuel was found in the gascolator. Subsequent to the discovery of the fuel, the engine was run. While operating at full power on the left tank (yellow fuel), the engine lost RPM, ran rough and produced black smoke out of the exhaust. When the fuel selector was switched to the right tank and run on the other fuel (blue/green), the engine operated at rated RPM with no noted discrepancy. An evaporation test was made between the fuel from the left tank of the accident airplane, kerosene, and 86 octane rated motor fuel gasoline. There appeared to be no appreciable difference in observed evaporation rate between the fuel from the accident airplane and the 86 octane motor fuel, while the kerosene left an oily film. While no specific determination was made as to the nature of the yellow fuel found, the accident airplane had no Supplemental Type Certificate for use of any fuel in lieu of AV-gas. ## Aircraft - Registration: [N6130N](https://openairdocs.org/deregistered/N6130N-2013-08-19), registration cancelled 2013-08-19, S/N MB-327, built 1968 (OpenAirDocs) - Reported make and model: BEECH 19A - Registry model: [Beech 19A](https://openairdocs.org/model/beech-19a) (registry code 1151214) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: MB-327 - Engines: LYCOMING O-320-E2C 150 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Flying Muskateers - Airworthiness certificate: Standard, Normal - Departed: NONE - Destination: NONE - Airport: NONE, Troy Airpark, runway 8, 2,200 × ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; student; medical: class 3, valid medical--no waivers/lim.; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: calm ## 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 19930828031539A](https://openairdocs.org/incident/19930828031539A), Aug 28, 1993: Beech 19A, Troy, MO, Substantial damage. Student aborted takeoff on wet grass strip due belief not accelerating well. Poor braking. Slid off end runway. 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.