Traffic pattern conflict small aircraft X and Y. See and avoid concept.

Attributes
ACN	150658
Time
Date	199007
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : prc
State Reference	AZ
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : prc
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	descent : approach
Route In Use	approach : visual approach : straight in
Flight Plan	None
Aircraft 2
Operator	other
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach landing other other
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller non radar : 5
ASRS Report	150658
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Both local positions were open and we were using flight strips cut into 4THS with aircraft call sign and position written in, as per a facility order. I had approved a straight-in for small aircraft X (6 mi final). Small aircraft Y downwind abeam the tower was cleared to land. Small aircraft X reported a 4 mi final (1ST call). I also got 2 other inbnds at that time and had also 5 aircraft in the pattern. Small aircraft X was on a 3/4 mi final when I resequenced small aircraft Y on right base to follow small aircraft X. Both aircraft landed with proper sep. I learned to be more careful with the flight strips, because my strips got scrambled taking part of my attention away trying to straighten them out therefore small aircraft Y's resequence could have been more timely.

Original NASA ASRS Text

Title: TRAFFIC PATTERN CONFLICT SMA X AND Y. SEE AND AVOID CONCEPT.

Narrative: BOTH LCL POSITIONS WERE OPEN AND WE WERE USING FLT STRIPS CUT INTO 4THS WITH ACFT CALL SIGN AND POS WRITTEN IN, AS PER A FAC ORDER. I HAD APPROVED A STRAIGHT-IN FOR SMA X (6 MI FINAL). SMA Y DOWNWIND ABEAM THE TWR WAS CLRED TO LAND. SMA X RPTED A 4 MI FINAL (1ST CALL). I ALSO GOT 2 OTHER INBNDS AT THAT TIME AND HAD ALSO 5 ACFT IN THE PATTERN. SMA X WAS ON A 3/4 MI FINAL WHEN I RESEQUENCED SMA Y ON R BASE TO FOLLOW SMA X. BOTH ACFT LANDED WITH PROPER SEP. I LEARNED TO BE MORE CAREFUL WITH THE FLT STRIPS, BECAUSE MY STRIPS GOT SCRAMBLED TAKING PART OF MY ATTN AWAY TRYING TO STRAIGHTEN THEM OUT THEREFORE SMA Y'S RESEQUENCE COULD HAVE BEEN MORE TIMELY.

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.