NTSB Identification: FTW86LA135.
The docket is stored on NTSB microfiche number 31698.
Accident occurred Sunday, July 20, 1986 in HOUSTON, TX
Aircraft: HUGHES 369D, registration: N1109T
Injuries: 3 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.

REPORTEDLY THE PILOT WAS INSTRUCTING THE CO-PILOT IN QUICK STOP MANEUVERS, WHEN THE HELICOPTER'S TAIL BOOM AND AFT SKIDS STRUCK THE GROUND ON DESCENT. THE HELICOPTER TAIL BOOM WAS BENT 2 FEET FORWARD OF THE TAIL ROTOR GEAR BOX AND BOTH AFT SKIDS WERE BROKEN. THE PILOT STATED HE WAS IN A STATIONARY HOVER WHEN HE HEARD A LOUD BANG WHICH CAUSED THE HELICOPTER TO SPIN AND COLLIDE WITH THE GROUND. HOWEVER. THE FAA INSPECTOR AT THE SCENE OF THE ACCIDENT STATED THEY WERE PRACTICING QUICK STOPS AND THAT HE COULD FIND NO EVIDENCE OF ANY MECHANICAL FAILURE.

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

LANDING GEAR,SKID ASSEMBLY..BENT


Contributing Factors

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


Contributing Factors

ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SHAFT..BENT


Contributing Factors

FLARE..EXCESSIVE..PILOT IN COMMAND

Index for Jul1986 | Index of months