NTSB Identification: ANC84FA091.
The docket is stored on NTSB microfiche number 27006.
Nonscheduled 14 CFR
Accident occurred Thursday, June 14, 1984 in WHITTIER, AK
Aircraft: BELL 206L-1, registration: N5751Q
Injuries: 3 Uninjured.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
THE HELICOPTER EXPERIENCED AN ENG POWER LOSS DURING TAKEOFF AND DESCENDED INTO MARSHY TERRAIN. THE PIC STATED THAT HE WAS DEPARTING FROM A CONFINED AREA & AT 90% TORQUE THE ACFT ROSE TO 50 FT AGL. HE THEN ROSE TO 200 FT AGL BUT COULD NOT RECALL POWER SETTINGS. UPON REACHING 200 FT AGL HE NOSED THE ACFT OVER TO ACCELERATE AND BANKED LT USING APPROX 20 DEG BANK. HE FELT THE ACFT SHUDDER AND IT BEGAN TO SETTLE; HE ADDED POWER AND THE LOW RPM AUDIO & LIGHT CAME ON. DURING THE DESCENT HE NOTICED N2 RPM DECREASING & IT PASSED THRU 90%; HE LOWERED THE COLLECTIVE & IT STABILIZED AT 80%. HE SAID HE ATTEMPTED TO REGAIN RPM BY 'PUMPING' THE COLLECTIVE, BUT TO NO AVAIL & THE ACFT CRASHED. EXAMINATION OF THE WRECKAGE AND SUBSEQUENT TESTING DID NOT REVEAL ANY MECHANICAL REASON FOR THE POWER LOSS.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
The National Transportation Safety Board determines the probable cause(s) of this accident to be:PERFORMANCE DATA..EXCEEDED..PILOT IN COMMAND
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