# NTSB LAX94LA071: Rans S-14, N7844E, Riverside, CA, December 13, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 13, 1993, 09:35 local (17:35 UTC) - Place: Riverside, CA - Location: 33.9888° N, 117.4099° W: Placed by OpenAirDocs at FLABOB (RIR), within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=33.9888&lon=-117.4099&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 30, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 28620 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX94LA071 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28620/pdf - Page: https://openairdocs.org/ntsb/LAX94LA071 ## Probable cause the pilot incorrectly selecting the wrong fuel valve and the subsequent engine failure due to fuel starvation. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(total) - nonmechanical, takeoff - aircraft preflight - inadequate, pilot in command (contributing factor) - fuel tank selector position - improper, pilot in command (cause) - fluid,fuel - starvation (cause) - Forced landing, descent - emergency - In flight collision with terrain/water, descent - emergency - terrain condition - grass ## Analysis THE ENGINE FAILED IMMEDIATELY AFTER TAKEOFF ON RUNWAY 24. THE ENGINE WAS EXAMINED AND THE MAIN FUEL VALVE WAS FOUND IN THE 'OFF' POSITION. ADDITIONALLY, VISUAL EXAMINATION OF THE WRECKAGE REVEALED THAT THE AUXILIARY FUEL VALVE WAS FOUND IN THE 'ON' POSITION. AN ATTEMPT TO RUN THE ENGINE IN THIS CONFIGURATION WAS UNSUCCESSFUL. THE ENGINE DID RUN, HOWEVER, WITH THE MAIN FUEL VALVE IN THE 'ON' POSITION. ## Factual narrative On December 13, 1993, at 0935 hours Pacific standard time, a Rans S14, N7844E, collided with the terrain following an engine failure immediately after takeoff on Runway 24 at Flabob Airport, Riverside, California. The pilot was conducting a local visual flight rules personal flight. The airplane, owned and operated by the pilot, sustained substantial damage. The certificated private pilot was not injured. Visual meteorological conditions prevailed. The flight originated at Flabob Airport at 0930 hours. The pilot stated in the NTSB Form 6120.1/2, Pilot Operator Report, that he departed the Flabob Airport for a local pleasure flight at 09:30 hours. He said that "at about 250 feet above the end of Runway 24 the engine began to loose power, as if he had pulled back the throttle." He said he tried to land on a dirt road about 200 yards from the runway. He said as he touched down on the ground the airplane hit a 18 inch berm in the road that sheered off the landing gear and caused the left wing to hit the ground. The engine was examined under the direction of the Safety Board on December 20, 1993. According to the written report received by Carl Christopher, an inspector in the Riverside Flight Standards District Office, the main fuel valve was found in the "OFF" position. Additionally, visual examination of the wreckage revealed that the auxiliary fuel valve was found in the "ON" position. An attempt to run the engine in this configuration was unsuccessful. Under the direction of the FAA inspector, the main fuel valve was placed in the "ON" position. A subsequent attempt to run the engine in this configuration was successful. The engine ran satisfactorily in all throttle positions. The main fuel valve was turned to the "OFF" position, while the throttle was set to a "high power setting." The engine subsequently ran for a time period of one minute and eighteen seconds. The main fuel valve was turned back to the "ON" position, and the engine started "easily." The inspector then turned the fuel valve back to the "OFF" position, at an idle throttle setting. The engine ran for four minutes and twenty seconds. The FAA inspector noted that the fuel valves in this installation are "very close to the pilot's seat...and can be obscured by a pilot of maturity." Additionally, he noted that when the seat belt is buckled, the fuel valve location is obscured by the seat belt location. ## Aircraft - Registration: [N7844E](https://openairdocs.org/deregistered/N7844E-1995-04-03), registration cancelled 1995-04-03, S/N 0792026 (OpenAirDocs) - Reported make and model: RANS S-14 - Registry model: [Brown William S RANS S-14](https://openairdocs.org/model/brown-william-s-rans-s-14) (registry code 05620RK) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 0792026 - Airframe hours: 100 - Engines: Rotax 582LC 65 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: William Steven Brown - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Unknown, August 17, 1993, 40 hours before - Airport: RIR, Flabob Airport, runway 24, 3,200 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: center; flight hours: 140 total, 100 in this make and model, 100 as pilot in command, 40 in the last 90 days, 9 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 50 statute miles - Lowest ceiling: none - Altimeter: 30.00 inHg - Observed at: RA, 3 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 19931213046839A](https://openairdocs.org/incident/19931213046839A), Dec 13, 1993: Amtr RANSS12, Riverside/Rubid, CA, Substantial damage. Engine quit on takeoff. Sheared off landing gear on off airport landing. Main fuel valve in off position. 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.