Aviation Accident Summaries

Aviation Accident Summary ANC91FA050

TATITLEK, AK, USA

Aircraft #1

N6966D

PIPER PA-18-150

Aircraft #2

N5193G

CESSNA 305A

Analysis

ACCORDING TO WITNESSES, THE PLTS OF ABT 50 FISH SPOTTING ACFT WERE FLYING IN THE VCNTY OF BOULDER BAY, CIRCLING & WAITING FOR OPENING OF HERRING FISHING. EACH SPOTTING PLT WAS TEAMED WITH ASSOCIATED FISHING VESSELS. THE SPOTTING PLTS WERE IN COMMUNICATION WITH THEIR RESPECTIVE FISHING VESSELS, BUT NOT WITH EACH OTHER. SUBSEQUENTLY, 2 OF THE ACFT (PIPER PA-18, N6966D & CESSNA 305A, N5193G) CONVERGED & COLLIDED. THE PA-18 PLT SAID THAT HE HAD BEEN ESTABLISHED IN LEVEL FLT FOR ABT 1 MI AT 1200' & 85 TO 88 KTS WHEN THE COLLISION OCCURRED. JUST BEFORE IMPACT, HE NOTED THE CESSNA 305 CONVERGING FROM HIS LEFT REAR QUARTER, SLIGHTLY LOW, & IN A SLIGHT LEFT BANK. AFTER IMPACT, THE CESSNA WENT OUT OF CONTROL & CRASHED ON MOUNTAINOUS TERRAIN. THE PA-18 SUSTAINED DAMAGE TO ITS FUSELAGE & FLOAT/STRUT SYS, BUT THE PLT WAS ABLE TO LAND SUCCESSFULLY.

Probable Cause and Findings

FAILURE OF BOTH PILOTS TO SEE-AND-AVOID EACH OTHER (INADEQUATE VISUAL LOOKOUT). A FACTOR RELATED TO THE ACCIDENT WAS: INADEQUATE COMMUNICATIONS AMONG ALL PARTICIPATING AIRCREWS.

 

Source: NTSB Aviation Accident Database

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