CLOSE PROX COAST GUARD HELI ON SEARCH OP AND A COMMUTER SMT AMPHIB ON TKOF RUN.

Narrative

ABOUT 1/2 WAY INTO OUR TKOF RUN FROM GOVT CUT IN MIAMI A UNITED STATES COAST GUARD HELI FLEW OVER US. HIS ROTOR DOWNWASH GAVE US CTL PROBLEMS. AT THIS TIME I CAME ON THE CTLS TO HELP MY COPLT. AFTER REGAINING CTL; AND WELL CLR OF THE HELI WE CONTINUED THE TKOF AND COMPLETED THE FLT AS NORMAL. DURING THE TKOF WE DID UNDERFLY THE HELI. THIS IS BECAUSE HE SLOWED DOWN; AND I ALSO FELT THAT I NEEDED PWR TO MAINTAIN CTLABILITY. ABORTING THE TKOF WOULD HAVE CAUSED THE AIRPLANE TO HIT THE L BANK OF GOVT CUT. I FEEL THE HELI COULD HAVE EASILY AVOIDED THIS NEAR MISS BY NOT GETTING AS CLOSE AS HE WAS TO ME DURING MY TKOF RUN. I HOPE WE ALL CAN WORK TOGETHER TO PROMOTE AVIATION SAFETY. SUPPLEMENTAL INFO FROM ACN 195252: WHILE CONDUCTING SEARCH FOR SURVIVORS OF A BOATING ACCIDENT; FLEW E ALONG THE NORTHERN SIDE OF A MAJOR WATERWAY. FLEW PAST A COMMERCIAL AMPHIBIOUS TURBOPROP TAXIING S ON RAMP ON N SIDE OF WATERWAY. ADVISED CREW TO WATCH FOR AMPHIBIOUS TO TKOF ON S SIDE OF WATERWAY AND PASS US ON R SIDE. ATTEMPTED CONTACT ON 122.8 WITH NEGATIVE RESULTS. SUSPECT AMPHIBIOUS CREW DID NOT WANT TO WAIT FOR SEPARATION PRIOR TO TKOF. KNOW CREW SAW HELI BECAUSE I SAW THEM LOOKING AT HELI AS THEY TAXIED S.