CEN18LA381
2018-09-19 · Pagosa Springs, Colorado, United States · None · 1 aircraft · Status: Completed
Airport PSO
Current FAA registration · N8003W
- Make / Model
- PIPER PA-28-180
- Year of manufacture
- 1964 · 54 years old at event
- Engine
- LYCOMING O&VO-360 SER (180 hp)
- Seats / Engines
- 4 seats · 1 engine
- Last airworthiness date
- 19641221
- ADS-B equipped
- Yes — Mode-S AAE4B3
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The student pilot's mismanagement of the fuel selector valve during the simulated forced landing demonstration and the flight instructor's inadequate supervision to ensure the fuel selector was properly set, which resulted in a loss of engine power and subsequent forced landing on unsuitable terrain.
Factual narrative
On September 19, 2018, about 1000 mountain daylight time, a Piper PA28 180 airplane, N8003W, impacted fencing and terrain during a forced landing near Pagosa Springs, Colorado, following an inflight loss of engine power. The airline transport pilot rated flight instructor and the student pilot were uninjured. The airplane sustained substantial damage during the impact with fencing. The airplane was registered to and operated by San Juan Flyers Inc. as a Title 14 Code of Federal Regulations Part 91 instructional flight. Day visual meteorological conditions prevailed in the area about the time of the accident, and the flight was not operated on a flight plan. The local flight originated from the Stevens Field Airport, near Pagosa Springs, Colorado, about 0900.According to the flight instructor's accident report, the flight instructor was introducing engine failure emergency procedures to the student pilot. Emergency procedures were reviewed inflight, the instructor located a landing spot, and pulled the throttle to idle to simulate a loss of engine power. The student pilot conducted the emergency procedures on the left side of the cockpit that included switching the fuel tank selector position from right to left, verifying the primer was in and locked, turning on the fuel pump, checking magneto operation, and turning the carburetor heat on. The flight instructor subsequently added power to go around about 600 ft above the ground. The engine sputtered. Emergency procedures were reviewed again and the flight instructor noticed that the fuel pressure indication was zero. The flight instructor did not check the fuel selector nor could the selector be seen due to its location. The flight instructor subsequently performed a forced landing during which the airplane impacted fencing and ditches before coming to rest in a field. Following the accident, the flight instructor observed the fuel selector valve was about 1.5 to 2 inches between the left detent and off positions. Subsequent to the accident, a Federal Aviation Administration inspector examined the accident airplane at the accident site. The airplane's engine was started, and the engine was operational. The flight instructor reported no preimpact mechanical malfunctions or failures with the airframe and engine that would have precluded normal operation and had a safety recommendation to double check the fuel selector valve position during the forced landing demonstration. The airline transport pilot rated flight instructor was introducing engine failure emergency procedures to the student pilot. Emergency procedures were reviewed inflight. The flight instructor then reduced the engine power to idle to simulate a loss of engine power. The student pilot conducted the emergency procedures on the left side of the cockpit that included switching the fuel tank selector position from right to left. The engine sputtered when the flight instructor subsequently added power to go around about 600 ft above the ground. The engine sputtered. Emergency procedures were reviewed again and the fuel pressure indication was zero. The flight instructor subsequently performed a forced landing where the airplane impacted fencing and ditches and came to rest in a field. Following the accident, the flight instructor noticed the fuel selector valve was about 1.5 to 2 inches between the left detent and off positions. No preimpact mechanical malfunctions or failures with the airframe and engine that would have precluded normal operation were reported by the flight instructor and the engine was operational during a subsequent examination of the accident airplane at the accident site. It is likely the student pilot, while conducting the emergency procedure, mismanaged the positioning of the fuel selector valve. While the student pilot was conducting the emergency procedure, the flight instructor did not adequately supervise the student pilot to ensure the fuel selector valve was properly set to the correct position. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Aircraft-Fluids/misc hardware-Fluids-Fuel-Fluid management - C
- C Personnel issues-Task performance-Use of equip/info-Use of equip/system-Student/instructed pilot - C
- C Personnel issues-Psychological-Attention/monitoring-Monitoring other person-Instructor/check pilot - C
- — Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Contributed to outcome
- — Environmental issues-Physical environment-Terrain-Rough terrain-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2018_CEN18LA381.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (engine failure). All research papers
- arXiv 2022 · arXiv preprint Multi-level Adaptation for Automatic Landing with Engine Failure under Turbulent Weather
This paper addresses efficient feasibility evaluation of possible emergency landing sites, online navigation, and path following for automatic landing under engine-out failure subject to turbulent wea…
- NASA NTRS 2019 · Conference Paper Simulation of Liquid Rocket Engine Failure Propagation Using Self-Evolving Scenarios
Traditional probabilistic risk assessment approaches often require failure scenarios to be explicitly defined through event sequences that are then quantified as part of the integrated analysis.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techiques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techniques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Technical Memorandum (TM) A simulator investigation of engine failure compensation for powered-lift STOL aircraft
A piloted simulator investigation of various engine failure compensation concepts for powered-lift STOL aircraft was carried out at the Ames Research Center.
- Semantic Scholar 2019 · Article (AIAA Scitech 2019 Forum) Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft
Potential advantages of hybrid-electric aircraft are fuel savings, lower emissions, and reduced noise. Since these aircraft generally apply multiple power sources, they can also be designed to sustain…