NTSB CAROL · Event
Event BFO90FA064
Aircraft involved
Probable cause & findings
THE PILOT FAILED TO MAINTAIN ADEQUATE AIRSPEED WHICH RESULTED IN A STALL. CONTRIBUTING WAS THE LOSS OF POWER FOR UNDETERMINED REASONS.
Factual narrative
THE FLIGHT WAS INBOUND TO MTN WHEN ELECTRICAL POWER OCCURRED AND COMMUNICATION WITH ATC WAS LOST. THE PILOT PROCEEDED TO MTN, ENTERED THE TRAFFIC PATTERN, TO LAND ON RUNWAY 14. ACCORDING TO THE PILOT, THE ENGINE LOST POWER WHILE HE WAS ON BASE LEG AND THE AIRPLANE CRASHED LESS THAN A MILE FROM THE RUNWAY. A PAX SAID THE PILOT TURNED LEFT TO AVOID ANOTHER JUST BEFORE THE ENGINE LOST POWER. HE SAID DURING THE TURN THE AIRPLANE SHAKED. ATC PERSONNEL AT MTN SAID THEY FIRST NOTICED THE AIRPLANE WHEN IT WAS ON BASE LEG, BUT ANOTHER AIRPLANE HAD BEEN CLEARED TO LAND, WHOSE PILOT WAS THEN INSTRUCTED TO BREAK OFF THE APPROACH. ATC THEN SAW THE ACCIDENT AIRPLANE GO THROUGH THE FINAL APPROACH COURSE, TURN LEFT, AND DESCEND TO THE GROUND. THE EXAMINATION OF THE AIRPLANE REVEALED THE ALTERNATOR BELT FAILED, ALTHOUGH IT WAS NOT DETERMINED IF THE FAILURE OCCURRED PRE OR POST IMPACT. THE ALTERNATOR WAS DAMAGED AND WAS NOT TESTED. THE ALTERNATOR WARNING CIRCUITRY FOR THE ANNUNCIATOR PANEL WAS FOUND DEFECTIVE, WHICH DISABLED THE WARNING. MECHANICAL EXAMINATION OF THE AIRFRAME AND ENGINE DID NOT DISCLOSE EVIDENCE OF MECHANICAL MALFUNCTION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_BFO90FA064.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Beyond the agency record
Search this event elsewhere.
Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.
Entity-clustered aviation events in the press — last 24 hr + 30-day archive.
Official agency record + docket.
Investigative docket: factual reports, photos, transcripts.
Long-running aviation incident database (Flight Safety Foundation).
Community NTSB synthesis blog — often has photos and witness reports.
Gold-standard aviation incident blog.
Aviation industry news search.
GA pilot forum — informed but rumor-prone.
GA pilot subreddit search.
Tail-number page — flight history (free tier limited).
AOPA Air Safety Institute search.
Mainstream press coverage. Recent events only.
Privacy-preserving news search.
External links open in a new tab. We don't ingest their content; we deep-link search queries.
Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
Browse the full corpus — academia portal ↗