Narrative:

On a training flight on ILS runway 6 in hwv (VMC -- supervised by new york approach) we reported to unicom above the OM (1700 ft). I reported our position at 1200 ft (3 NM from runway). The runway in use was runway 33 and I checked the downwind leg where no one was reporting at 400 ft. I told the student to fly the missed approach after reaching the missed approach point. He did it correctly and no airplane answered my call on unicom for the missed approach. The published missed approach is a climbing turn (to 1900 ft), 180 degrees. After reaching the missed approach point and 500 ft, my student (under the hood) turned while climbing and passed the supposedly 'empty' downwind leg at 800 ft when I saw another single engine airplane at about 800 ft to my right. We did not have to take evasive action, neither did the other airplane. All this was legal but left me uneasy. I assume the other airplane had no radio or no working radio.

Google
 

Original NASA ASRS Text

Title: PA28 ON A PRACTICE ILS. TRAINEE IS EXECUTING A MISSED APCH. COM WITH UNICOM HAS BEEN MADE AND HAD NOT HEARD ANY RPTS OF OTHER ACFT IN THE TFC PATTERN. ON LEAVING 800 FT AGL, CAME CLOSE TO AN ACFT ON DOWNWIND LEG FOR RWY 33 WHICH WAS NOT MAKING ANY RADIO CALLS.

Narrative: ON A TRAINING FLT ON ILS RWY 6 IN HWV (VMC -- SUPERVISED BY NEW YORK APCH) WE RPTED TO UNICOM ABOVE THE OM (1700 FT). I RPTED OUR POS AT 1200 FT (3 NM FROM RWY). THE RWY IN USE WAS RWY 33 AND I CHKED THE DOWNWIND LEG WHERE NO ONE WAS RPTING AT 400 FT. I TOLD THE STUDENT TO FLY THE MISSED APCH AFTER REACHING THE MISSED APCH POINT. HE DID IT CORRECTLY AND NO AIRPLANE ANSWERED MY CALL ON UNICOM FOR THE MISSED APCH. THE PUBLISHED MISSED APCH IS A CLBING TURN (TO 1900 FT), 180 DEGS. AFTER REACHING THE MISSED APCH POINT AND 500 FT, MY STUDENT (UNDER THE HOOD) TURNED WHILE CLBING AND PASSED THE SUPPOSEDLY 'EMPTY' DOWNWIND LEG AT 800 FT WHEN I SAW ANOTHER SINGLE ENG AIRPLANE AT ABOUT 800 FT TO MY R. WE DID NOT HAVE TO TAKE EVASIVE ACTION, NEITHER DID THE OTHER AIRPLANE. ALL THIS WAS LEGAL BUT LEFT ME UNEASY. I ASSUME THE OTHER AIRPLANE HAD NO RADIO OR NO WORKING RADIO.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.