NTSB Identification: ANC84FA073A
Accident occurred Monday, May 21, 1984 in PLATINUM, AK
Aircraft: PIPER PA-18-150, registration: N82454
Injuries: 2 Fatal.

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 HERRING SEASON WAS TO OPEN AT 1600 HRS. ACCORDING TO WITNESSES, ABOUT 30 ACFT WERE CIRCLING IN LEFT TURNS OVER MERGING SCHOOLS OF HERRING WHILE THE PLTS & THEIR RESPECTIVE BOAT CREWS WERE AWAITING THE OPENING SIGNALS. THE ACFT WERE CIRCLING UNDER A LOW OVERCAST WHERE THE HERRING WERE MERGING NEAR A SHORELINE. TWO ACFT (A PIPER PA-18, N82554, & A CESSNA 182H, N4798U) COLLIDED WHILE THE PLTS WERE SPOTTING FISH. OF 6 WITNESSES WHO SAW THE COLLISION 5 AGREED THAT THE CESSNA WAS CONVERGING FROM INSIDE THE RADIUS OF THE PIPER'S TURN. AFTER COLLIDING, BOTH ACFT IMPACTED ON A BLUFF NEAR THE SHORELINE. WITNESSES USED SUCH TERMS AS 'FRANTIC', 'CHAOTIC' & 'INSANE' WHEN THEY DESCRIBED THE FLT ACTIVITY OVER THE FISH AT THE OPENING OF THE HERRING SEASON WITH ITS LUCRATIVE REWARDS.

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

VISUAL LOOKOUT..INADEQUATE..PILOT IN COMMAND

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

DIVERTED ATTENTION..PILOT IN COMMAND

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

VISUAL LOOKOUT..INADEQUATE..PILOT OF OTHER AIRCRAFT

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

DIVERTED ATTENTION..PILOT OF OTHER AIRCRAFT


Contributing Factors

JUDGMENT..POOR..PILOT IN COMMAND


Contributing Factors

SELF-INDUCED PRESSURE..PILOT IN COMMAND


Contributing Factors

JUDGMENT..POOR..PILOT OF OTHER AIRCRAFT


Contributing Factors

SELF-INDUCED PRESSURE..PILOT OF OTHER AIRCRAFT


Contributing Factors

CREW/GROUP COORDINATION..INADEQUATE..OTHER PERSON


Contributing Factors

RADIO COMMUNICATIONS..INADEQUATE


Contributing Factors

WEATHER CONDITION..LOW CEILING

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