NTSB Identification: ATL86LA202.
The docket is stored on NTSB microfiche number 31946.
Scheduled 14 CFR REPUBLIC AIRLINES, INC.
Accident occurred Monday, July 21, 1986 in MONTGOMERY, AL
Aircraft: DOUGLAS DC-9-31, registration: N9332
Injuries: 1 Serious,1 Minor,39 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

DURING FLT, THE ACFT ENCOUNTERED TURBULENCE (TURBC) WHILE FLYING IN THE VICINITY OF A THUNDERSTORM (TSTM). DURING THE OCCURRENCE, A FLT ATTENDANT, WHO WAS SERVING BEVERAGES, SUSTAINED A FRACTURED LUMBAR VERTEBRAE. RADAR DATA REVEALED THE ACFT WAS ABOUT 4 MI WEST (DOWNWIND) FROM HVY WX. JUST BEFORE THE ENCOUNTER, THE FLT CREW RPRTD THEY WERE FLYING UNDER 'SOME PRETTY GOOD OVERHANGS.' FAA CIRCULAR AC 00-6A, TITLED 'AVIATION WEATHER,' STATES 'DO AVOID BY AT LEAST 20 MILES ANY THUNDERSTORM IDENTIFIED AS SEVERE OR GIVING AN INTENSE RADAR ECHO. THIS IS ESPECIALLY TRUE UNDER THE ANVIL OF A LARGE CUMULONIMBUS.' RPRTDLY, THE SEAT BELT SIGN WAS ON WHEN THE TURBC ENCOUNTER OCCURRED.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TURBULENCE(THUNDERSTORMS)


Contributing Factors

WEATHER CONDITION..TURBULENCE,CLEAR AIR


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