NTSB Identification: NYC88LA116.
The docket is stored on NTSB microfiche number 38381.
Accident occurred Tuesday, March 29, 1988 in ALLENTOWN, PA
Probable Cause Approval Date: 01/04/1990
Aircraft: BELL 206L, registration: N114FH
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.

DURING AN FAA FLIGHT CHECK AN AUTOROTATIONAL DESCENT WAS MADE WITH A PLANNED POWER RECOVERY, THE HELICOPTER FELL THROUGH THE MANEUVER AND COLLIDED WITH THE GROUND. THE MAIN ROTOR BLADES FLEXED DOWNWARD, STRIKING THE HORIZONTAL FIN WINGLETS AND THE TAIL BOOM.

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

AUTOROTATION..IMPROPER..PILOT IN COMMAND

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

ALTITUDE..MISJUDGED..PILOT IN COMMAND

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

ADEQUATE ROTOR RPM..NOT MAINTAINED..PILOT IN COMMAND

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