NTSB Identification: LAX83LA159.
The docket is stored on NTSB microfiche number 21024.
Accident occurred Friday, March 25, 1983 in RANCHO BERNARDO, CA
Aircraft: HUGHES 369D, registration: N9589F
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.

ACCORDING TO THE PLT, HE WAS ABOUT 10 FT AGL IN A HOVER, WITH A LEFT QUARTERING TAILWIND AT 5, GUSTING 10 KTS, WHEN HE ATTEMPTED A LEFT PEDAL TURN. HE SAID THE HELICOPTER BEGAN TO TURN TO THE RIGHT & ADDITIONAL LEFT PEDAL APPLICATION HAD NO EFFECT. HE ROLLED THE THROTTLE OFF & ATTEMPTED TO LAND, BUT THE HELICOPTER CONTINUED TURNING TO THE RIGHT & CRASHED. HE REMEMBERED HEARING THE LOW RPM WARNING HORN, BUT DID NOT REMEMBER SEEING THE LOW RPM LIGHT. ALSO, HE DID NOT RECALL HEARING ANY UNUSUAL NOISES OR FEELING ANY UNUSUAL VIBRATIONS BEFORE IMPACT. AN EXAMINATION OF THE HELICOPTER & DAMAGED PARTS WAS MADE, BUT NO PREIMPACT MALFUNCTION OR FAILURE OF THE ENG; AIRFRAME OR FLT CONTROL SYS WAS FOUND.

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

ROTOR RPM..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TAILWIND


Contributing Factors

WEATHER CONDITION..CROSSWIND


Contributing Factors

WEATHER CONDITION..GUSTS


Contributing Factors

MANEUVER..INITIATED..PILOT IN COMMAND


Contributing Factors

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND

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