Narrative:

Small aircraft X entered the runway 9R pattern at mlb and were told to make a short approach. We complied, and as we were on short final the tower controller cleared a seminole for takeoff on runway 9R. She then issued a go around to us followed by instructions to enter right traffic for runway 9R. We flew a normal right hand pattern for runway 9R. As we were on base, I noticed an aircraft on final for runway 9L. I advised my student to 'clear final.' we commenced our turn to final, but had not received landing clearance (which is not unusual during congested times at mlb). I said, 'X short final runway 9R,' about the same time my student said we had another aircraft off our left wing. I was not concerned, thinking it was the traffic I saw going to runway 9L. A very confused controller came on and asked who was on short final. We then saw another aircraft Y slightly behind and below us to the left. Both aircraft initiated immediate gars. We received no TA's while making right traffic. Traffic evidently, local control had experienced a shift change and we were forgotten. A valuable lesson was learned in our cockpit about the importance of scanning for traffic (at every turn in the pattern, especially) at uncontrolled or controled fields.

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Original NASA ASRS Text

Title: SMA X HAD NMAC WITH ACFT Y ON FINAL APCH. EVASIVE ACTION TAKEN. SEE AND AVOID CONCEPT.

Narrative: SMA X ENTERED THE RWY 9R PATTERN AT MLB AND WERE TOLD TO MAKE A SHORT APCH. WE COMPLIED, AND AS WE WERE ON SHORT FINAL THE TWR CTLR CLRED A SEMINOLE FOR TKOF ON RWY 9R. SHE THEN ISSUED A GAR TO US FOLLOWED BY INSTRUCTIONS TO ENTER R TFC FOR RWY 9R. WE FLEW A NORMAL RIGHT HAND PATTERN FOR RWY 9R. AS WE WERE ON BASE, I NOTICED AN ACFT ON FINAL FOR RWY 9L. I ADVISED MY STUDENT TO 'CLR FINAL.' WE COMMENCED OUR TURN TO FINAL, BUT HAD NOT RECEIVED LNDG CLRNC (WHICH IS NOT UNUSUAL DURING CONGESTED TIMES AT MLB). I SAID, 'X SHORT FINAL RWY 9R,' ABOUT THE SAME TIME MY STUDENT SAID WE HAD ANOTHER ACFT OFF OUR L WING. I WAS NOT CONCERNED, THINKING IT WAS THE TFC I SAW GOING TO RWY 9L. A VERY CONFUSED CTLR CAME ON AND ASKED WHO WAS ON SHORT FINAL. WE THEN SAW ANOTHER ACFT Y SLIGHTLY BEHIND AND BELOW US TO THE L. BOTH ACFT INITIATED IMMEDIATE GARS. WE RECEIVED NO TA'S WHILE MAKING R TFC. TFC EVIDENTLY, LCL CTL HAD EXPERIENCED A SHIFT CHANGE AND WE WERE FORGOTTEN. A VALUABLE LESSON WAS LEARNED IN OUR COCKPIT ABOUT THE IMPORTANCE OF SCANNING FOR TFC (AT EVERY TURN IN THE PATTERN, ESPECIALLY) AT UNCTLED OR CTLED FIELDS.

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.