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CHI86FA193

1986-08-01 · FOND DU LAC, Wisconsin, United States · None · 1 aircraft · Status: Completed

Airport FLD

N137JM has since been reassigned. It is now registered to a different aircraft (VAN'S AIRCRAFT RV-9A, built 2006), which was not involved in this event.

Aircraft involved

Factual narrative

THE PILOT EXPERIENCED A COMPLETE ELECTRICAL SYSTEM FAILURE THAT WAS CAUSED BY A BROKEN WIRE AT AN ALTERNATOR TERMINAL. UPON EXTENSION OF THE HYDRAULICALLY OPERATED LANDING GEAR A SAFE GEAR DOWN INDICATION WAS NOT OBTAINED. ACTIVATION OF THE CO2 OPERATED EMERGENCY GEAR EXTENSION SYSTEM FAILED TO PROVIDE A SAFE GEAR DOWN INDICATION. THE PILOT WAS UNABLE TO COMMUNICATE WITH ANY FACILITY TO DETERMINE THE POSITION OF THE LANDING GEAR BECAUSE OF THE LOSS OF ELECTRICAL POWER. HE ELECTED TO LAND ON THE GRASS ADJACENT TO THE RUNWAY. THE GEAR WAS DOWN AND UPON TOUCHDOWN, THE NOSE GEAR COLLAPSED WHEN IT DUG INTO THE SOFT TERRAIN. THE AIRCRAFT THEN FLIPPED INVERTED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1986_CHI86FA193.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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