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MKC90LA108

1990-05-15 · DUBUQUE, Iowa, United States · None · 1 aircraft · Status: Completed

Airport DBQ

Aircraft involved

Probable cause & findings

WEATHER EVALUATION MISJUDGED RESULTING IN UNCONTROLLED DESCENT BY THE PILOT IN COMMAND AND AIRCRAFT CONTROL NOT MAINTAINED BY THE PILOT IN COMMAND.

Factual narrative

WHILE ON FINAL, DURING A FULL ILS APPROACH, THE ATR RATED PLT SAID THAT HE ENCOUNTERED HEAVY RAIN, EXTREME TURBULENCE, AND A POSSIBLE WIND SHEAR AT ABOUT 600 FEET AGL. HE SAID THAT HE LOST THE LOCALIZER, STARTED A MISSED APPROACH WITH FULL POWER AND A PITCH UP ATTITUDE, BUT THE AIRCRAFT CONTINUED ITS DESCENT AND COLLIDED WITH THE TERRAIN ABOUT 1/2 MILE SHORT OF THE RUNWAY. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_MKC90LA108.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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