ERA12CA118
2011-12-17 · Montague, Massachusetts, United States · None · 1 aircraft · Status: Completed
Airport 0B5
Current FAA registration · N89809
- Make / Model
- CESSNA 120
- Engine
- CONT MOTOR C85 SERIES (85 hp)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19600428
- ADS-B equipped
- Yes — Mode-S AC6586
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's delay in performing a rejected takeoff after experiencing an intermittent loss of engine power, which resulted in a runway excursion.
Factual narrative
The pilot reported that during the takeoff roll, as the airplane accelerated to 40 mph, the engine sputtered and he reduced power with sufficient runway remaining to stop; however, the sputter ceased and he then added power to continue the takeoff attempt. The engine sputtered a second time and the pilot reduced engine power again. At that point, he was concerned about the length of runway remaining, and elected to steer off the left side of the runway, rather than risk going off the end of the runway and down a ditch. As the airplane departed the left side of the runway, it struck a runway sign and came to rest upright. During the accident sequence, the airplane sustained substantial damage to the aft fuselage and empennage. The pilot subsequently defueled and moved the airplane before it was examined by a Federal Aviation Administration inspector. As such, the inspector was unable to verify the fuel quantity or if any fuel contamination was present. His subsequent examination of the airframe and engine did not reveal any preimpact mechanical failures. Additionally, the pilot reported that there were no other preimpact mechanical malfunctions and that he should have aborted the takeoff earlier. The pilot reported that, during the takeoff roll, as the airplane accelerated to 40 mph, the engine sputtered, and he reduced power with sufficient runway remaining to stop; however, the sputtering ceased, and he then added power to continue the takeoff attempt. The engine sputtered a second time, and the pilot reduced engine power again. At that point, he was concerned about the length of runway remaining and elected to steer off the left side of the runway, rather than risk going off the end of the runway and down into a ditch. As the airplane departed the left side of the runway, it struck a runway sign and sustained substantial damage to the aft fuselage and empennage. The pilot subsequently defueled and moved the airplane before it could be examined. Therefore, it was not possible to verify the fuel quantity or determine if any fuel contamination was present. Postaccident examination of the airframe and engine did not reveal evidence of any preimpact mechanical failures. The pilot reported that he should have aborted the takeoff earlier. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Action/decision-Action-Delayed action-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2011_ERA12CA118.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.
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Related research
Matched on aircraft type or causal vocabulary (fuel contamination, runway excursion). All research papers
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- NASA NTRS 2025 · Conference Paper Uncovering Resilient Behavior in the Aviation Safety Reporting System Using Large Language Models
Resiliency is present in everyday life, both in system design and exhibited by the operators that function within these systems.