NTSB Identification: BFO88LA076.
The docket is stored on NTSB microfiche number 36489.
Accident occurred Saturday, August 27, 1988 in GAITHERSBURG, MD
Probable Cause Approval Date: 07/10/1989
Aircraft: ROBINSON R22A, registration: N8559A
Injuries: 2 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.

THE FLT WAS INITIATED WITH THE STUDENT PLT BRINGING THE HELICOPTER UP TO A HOVER WITH SOME FORWARD SPEED. THE STUDENT RAPIDLY AND FORCEFULLY APPLIED AFT CYCLIC. THE CFI WAS UNABLE TO COMPENSATE IN TIME, EVEN THOUGH HE WAS ON THE CONTROLS WITH THE STUDENT. THE STUDENT DID NOT RELINQUISH THE CONTROLS. THE MAIN ROTOR CONTACTED AND SEVERED THE TAIL BOOM. PARTIAL CONTROL WAS LOST BUT THE CFI WAS ABLE TO REDUCE THE THROTTLE AND ENTER AN AUTOROTATION FROM APRX 6 FT AGL. THE HELICOPTER CAME TO REST ON ITS SKIDS. THE STUDENT HAD ONLY 5 HRS FLT EXPERIENCE, ALL IN THE R22.

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

CYCLIC..IMPROPER USE OF..DUAL STUDENT

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

RELINQUISHING OF CONTROL..NOT PERFORMED..DUAL STUDENT



Contributing Factors

LACK OF TOTAL EXPERIENCE..DUAL STUDENT

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