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BFO89FA043

1989-06-09 · MYERSVILLE, Maryland, United States · Fatal · 1 aircraft · Status: Completed

Airport HGR

Aircraft involved

Probable cause & findings

CONTINUED FLIGHT BY THE PILOT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND HIS INABILITY TO MAINTAIN CONTROL OF THE AIRCRAFT AFTER BECOMING SPATIALLY DISORIENTED. CONTRIBUTING FACTORS WERE HILLY/MOUNTAINOUS TERRAIN, WEATHER CONDITIONS, THE PILOT'S LACK OF INSTRUMENT EXPERIENCE, AND HIS IMPAIRMENT FROM A PRESCRIPTION DRUG THAT WAS NOT APPROVED FOR USE WHILE FLYING.

Factual narrative

DRG A WX BRIEFING BEFORE TAKEOFF, THE NON-INSTRUMENT RATED PLT WAS ADZD THAT VFR FLT WAS NOT RCMDD. WHILE EN ROUTE ON A VFR FLT, THE ACFT CRASHED IN AN AREA WHERE RIDGE TOPS WERE OBSCD BY CLOUDS. A WITNESS, WHO HEARD THE ACFT, RPRTD THAT IT SOUNDED LIKE IT ENTERED A STEEP DESCENT BEFORE IT CRASHED. AN EXAM OF THE CRASH SITE VERIFIED THE ACFT HAD IMPACTED IN A STEEP DESCENT. NO PREIMPACT PART FAILURE/MALFUNCTION OF THE ACFT WAS FOUND. TOXICOLOGY CHECKS OF THE PLT'S LIVER TISSUE WERE POSITIVE FOR NORDIAZEPAM (AT OR ABOVE 0.148 MG/L) & MAPROTILINE AT OR ABOVE 8.6 MG/KG). NORDIAZEPAM IS A TRANQUILIZER & MAPROTILINE IS USED TO TREAT DEPRESSION. THE PLT'S FAMILY RPRTD THAT CENTRAX (PRAZEPAM) & LUDIOMIL (MAPROTILENE HYDROCHLORIDE) HAD BEEN PRESCRIBED TO THE PLT FOR CONTROL OF DEPRESSION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1989_BFO89FA043.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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