ERA24LA046
2023-10-29 · Highgate, Vermont, United States · None · 1 aircraft · Status: Completed
Airport FSO
Current FAA registration · N289WW
- Make / Model
- PIPER PA-39
- Year of manufacture
- 1971 · 52 years old at event
- Engine
- LYCOMING 0-290 SERIES (140 hp)
- Seats / Engines
- 6 seats · 2 engines
- Last airworthiness date
- 19710303
- ADS-B equipped
- Yes — Mode-S A2F173
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot’s inadvertent retraction of the landing gear during landing rollout, which resulted in a landing gear collapse.
Factual narrative
The pilot reported that during the landing rollout on a 3,001-ft-long, asphalt runway, he intended to retract the flaps, but instead he retracted the landing gear. The result was that all three of the landing gear assemblies retracted into their respective wheel wells during the landing roll. The lower fuselage stringers were substantially damaged. The pilot added that there were no preimpact mechanical malfunctions with the airplane. The airplane was equipped with a squat switch on the left main landing gear that was designed to prevent the landing gear from inadvertently retracting; however, the switch required that sufficient weight be on the landing gear in order to work effectively. The pilot stated, and a video of the landing confirmed, that the airplane was still moving at relatively high speed when he selected the landing gear handle to the retracted position. The pilot reported that the squat switch was tested at the last annual inspection and that it operated normally during the inspection. Based on this information, it is likely that the airplane’s wings were still generating lift when the landing gear handle was selected to the retracted position and the gear struts was not compressed enough to activate the squat switch. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — Personnel issues-Action/decision-Action-Incorrect action selection-Pilot
- — Aircraft-Aircraft systems-Landing gear system-Gear extension and retract sys-Unintentional use/operation
Verbatim from NTSB's published report. Source file
NTSB_2023_ERA24LA046.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
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