CHI91LA131
1991-04-11 · GRAND LEDGE, Michigan, United States · None · 1 aircraft · Status: Completed
Airport 4D0
Aircraft involved
Probable cause & findings
THE STUDENT'S FAILURE TO MAINTAIN A PROPER ALTITUDE AND CLEARANCE FROM THE TERRAIN ALONG WITH THE CFI'S FAILURE TO ADEQUATELY SUPERVISE THE STUDENT'S ACTIONS. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE INADEQUATE VISUAL LOOKOUT AVAILABLE DUE TO THE NIGHT LIGHT CONDITIONS.
Factual narrative
THE CFI AND HIS STUDENT WERE TAXIING BACK TO THE RAMP AFTER A NIGHT INSTRUCTIONAL HELICOPTER LESSON WHEN THE ACCIDENT OCCURRED. THE CFI STATED THE STUDENT ASCENDED TO AN ALTITUDE OF APPROXIMATELY 15 FEET DURING THE TAXI AT WHICH TIME THE CFI INSTRUCTED THE STUDENT TO DECREASE ALTITUDE. THE STUDENT DESCENDED TOO LOW AND THE SKID CONTACTED THE TAXIWAY RESULTING IN A DYMANIC ROLL OVER. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_CHI91LA131.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 ↗