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Atlas / NTSB / LAX90FA250

NTSB CAROL · Event

Event LAX90FA250

1990-07-11 PLEASANT VALLEY, Arizona, United States Airport · AZ05 Serious 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

AN INADVERTENT SPIN AFTER FAILURE TO MAINTAIN AIRSPEED. FACTORS INCLUDE INADEQUATE PREFLIGHT, AND AN IMPROPERLY MAINTAINED LAP BELT.

Factual narrative

THE PILOT OBSERVED THAT THE TOW PLANE WAS DIRTY SO HE WASHED IT. THE PILOT FAILED TO SECURE THE TWO ENGINE COWL DOORS. DURING INITIAL CLIMB, WITH A GLIDER IN TOW, THE DOORS BEGAN FLOPPING UP AND DOWN. THE GLIDER PILOT OBSERVED THE MISHAP, RELEASED THE TOW LINE AND SAFELY LANDED. THE TOW PLANE PILOT REVERSED COURSE TO RETURN FOR LANDING. THE WITNESSES REPORTED THAT WHILE REVERSING COURSE THE AIRPLANE'S PITCH ATTITUDE STEEPENED. THE AIRPLANE STALLED AND SPUN UNTIL CRASHING ON DESERT TERRAIN ADJACENT TO THE AIRSTRIP. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_LAX90FA250.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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.

Browse the full corpus — academia portal ↗