NTSB Identification: BFO86FA050.
The docket is stored on NTSB microfiche number 32361.
Accident occurred Sunday, September 28, 1986 in LEESBURG, VA
Aircraft: MOONEY M20F, registration: N6443Q
Injuries: 1 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

DRG ARRIVAL, THE PLT WAS CLRD FOR A VOR RWY 35 APCH. ALSO, HE WAS ADVISED THAT THERE WERE PROBLEMS WITH THE RWY LIGHTS &THAT OTHER PLTS HAD MADE MISSED APCHS THAT EVENING DUE TO DIM ARPT LIGHTING. HE WAS THEN CLRD TO UNICOM FREQ & TOLD TO CANCEL HIS IFR CLNC AFTER HE HAD LANDED. HOWEVER, BEFORE LANDING, THE ACFT CRASHED ON LVL TERRAIN APRX 1/2 MI NORTHWEST OF THE ARPT WHILE IN A LEFT DESCENDING TURN. AN EXAM OF THE ACFT & ENG REVEALED NO PREIMPACT PART MALFUNCTION/FAILURE. RADAR DATA INDICATED THE ACFT HAD BEGUN A 360 DEGREE TURN AT ABOUT THE TIME IT CROSSED OVER THE THRESHOLD OF RWY 35. SUBSEQUENTLY, IT CRASHED WHILE TURNING THRU A HEADING OF ABOUT 240 DEG. APRX 9 MI SSE AT THE DULLES IAP, THE WX WAS IN PART: 1700' SCATTERED, 2200' BROKEN, VIS 3 MI WITH FOG. WITNESS STATEMENTS & A WX STUDY INDICATED THERE WERE AREAS OF FOG AROUND THE ARPT WITH THE VIS AS LOW AS 1/2 MI. THE REIL LIGHTS & THE PLT CONTROLLED LIGHTING SYSTEM HAD BEEN INOP SINCE 5/15/86, BUT NO NOTAM HAD BEEN ISSUED. THEREFORE, THE RWY LIGHTS (MIRL SYS) HAD BEEN PRESET ON MEDIUM INTENSITY.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MINIMUM DESCENT ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

AIRPORT FACILITIES,RUNWAY END IDENT LIGHTS(REIL)..INOPERATIVE


Contributing Factors

NOTAMS..NOT ISSUED..AIRPORT PERSONNEL


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..FOG

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