NYC97LA184
1997-09-21 · EASTON, New York, United States · Serious · 1 aircraft · Status: Completed
Airport B04
Aircraft involved
Probable cause & findings
mechanical binding of the number three exhaust valve, and the pilot/owner's improper planning/decision by failing to ensure the engine was operating properly before takeoff. A related factor was: the pilot/owner's failure to ensure that annual maintenance was performed.
Factual narrative
On September 21, 1997, about 1050 eastern daylight time, a Cessna 150L, N6865G, was substantially damaged when it impacted tress during the initial takeoff climb from Garnsey Field, Easton, New York. The certificated commercial pilot was seriously injured. Visual meteorological conditions prevailed and no flight plan had been filed for the personal flight conducted under 14 CFR Part 91. In a written statement, the pilot said after performing a preflight inspection, he started the airplane and taxied to the south end of the runway to perform his run-up procedures. He further stated: "...The take-off RPM was around 2500, until I was about 500 feet past the end of the runway and climbing. The power dropped back to 2000 RPM with substantial vibration. I was unable to climb...I was unable to avoid the tops of trees in front of field for emergency landing." A friend of the pilot who witnessed the accident, stated: "...[I] waited for him to warm up the engine. It ran real rough at first....He warmed it up for 30 to 45 minutes...He said he was going to taxi to the other end of the runway and if it sounded OK he would takeoff. He took off North and did not seem to be gaining altitude and banked to the right and the next thing we heard was the crunch of hitting trees..." Examination of the airplane's engine by a Federal Aviation Administration Inspector revealed that the number three cylinder exhaust valve was stuck in the open position. A review of the airplane's log book by the FAA Inspector revealed the airplane had flown about 35 hours since it's most recent annual inspection, which was performed on July 13, 1994. A witness reported, the airplane's engine ran 'real rough' when started, and the pilot waited 30 to 45 minutes to warm the engine before departing. During the initial takeoff climb, the airplane's engine lost power. Unable to climb, the pilot attempted to perform an emergency landing, and the airplane struck trees. Examination of the airplane's engine revealed that the number three cylinder exhaust valve was stuck in the open position. The airplane had flown about 35 hours since its most recent annual inspection, which was performed on 7/13/94. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1997_NYC97LA184.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗
Related research
Matched on aircraft type or causal vocabulary (maintenance). All research papers
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA) From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2026 · Article (Reliability Engineering & System Safety) Understanding human error in military aviation maintenance: The role of Performance shaping factors, cognitive workload and error orientation
- Semantic Scholar 2025 · Article (Applied Sciences) Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Semantic Scholar 2024 · Article (Defence Science Journal) Modelling of Human Factors in Aviation Maintenance Using HFACS ME Human Factors Analysis and Classification System Maintenance Extension and Bayesian Network
Aircraft maintenance is a complex task involving a skilled human workforce, spare parts, and various other resources. Human factors are an inherent element of the human workforce.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER) A New Trajectory in UAV Safety: Leveraging Reinforcement Learning for Distance Maintenance Under Wind Variations
In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER) Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…