Narrative:

First aircraft (VFR) turned final (3 mi) from left base. Second aircraft (IFR) was told to widen out on right base and follow first aircraft. Second aircraft had first aircraft in sight, EST 3/4 to 1 mile behind. Tower controller turned attention to west side of field where 2 aircraft were entering right traffic on right crosswind, 3 others in pattern (27R). These conflictions were fixed and sequence set. Aircraft #1 had landed and was turning off runway 27L onto a closed taxiway 1400' from approach end. He was instructed not to turn on that taxiway, and turned back-down the runway. At that point aircraft #2 was seen on the runway about 200' from #1. #2 was told #1 was continuing on the runway and to slow down. #2 said he saw #1 and followed him off the runway. The #2 aircraft got within 75' of each other. #2 was not cleared to land. Contributing factors, closed taxiway 'right', late afternoon sun and haze, combined positions(LC1 and LC2) BRITE out of service. Possible remedies; split position, teach pilots not to land without clearance, increased controller awareness, a BRITE radar that works.

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Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION WHEN SMA LANDED ON RWY OCCUPIED BY PRECEDING SMA.

Narrative: FIRST ACFT (VFR) TURNED FINAL (3 MI) FROM LEFT BASE. SECOND ACFT (IFR) WAS TOLD TO WIDEN OUT ON RIGHT BASE AND FOLLOW FIRST ACFT. SECOND ACFT HAD FIRST ACFT IN SIGHT, EST 3/4 TO 1 MILE BEHIND. TWR CTLR TURNED ATTN TO WEST SIDE OF FIELD WHERE 2 ACFT WERE ENTERING RIGHT TFC ON RIGHT XWIND, 3 OTHERS IN PATTERN (27R). THESE CONFLICTIONS WERE FIXED AND SEQUENCE SET. ACFT #1 HAD LANDED AND WAS TURNING OFF RWY 27L ONTO A CLOSED TAXIWAY 1400' FROM APCH END. HE WAS INSTRUCTED NOT TO TURN ON THAT TAXIWAY, AND TURNED BACK-DOWN THE RWY. AT THAT POINT ACFT #2 WAS SEEN ON THE RWY ABOUT 200' FROM #1. #2 WAS TOLD #1 WAS CONTINUING ON THE RWY AND TO SLOW DOWN. #2 SAID HE SAW #1 AND FOLLOWED HIM OFF THE RWY. THE #2 ACFT GOT WITHIN 75' OF EACH OTHER. #2 WAS NOT CLRED TO LAND. CONTRIBUTING FACTORS, CLOSED TXWY 'R', LATE AFTERNOON SUN AND HAZE, COMBINED POSITIONS(LC1 AND LC2) BRITE OUT OF SERVICE. POSSIBLE REMEDIES; SPLIT POSITION, TEACH PLTS NOT TO LAND WITHOUT CLRNC, INCREASED CTLR AWARENESS, A BRITE RADAR THAT WORKS.

Data retrieved from NASA's ASRS site as of August 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.