Near midair collision on approach at controled military field.

Attributes
ACN	161202
Time
Date	199010
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sps
State Reference	TX
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sps
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	VFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 9960 flight time type : 980
ASRS Report	161202
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 400 vertical : 50
Supplementary
Primary Problem	ATC Human Performance

Narrative:

We approached airport from the west being radar vectored. Tower mentioned to report field. We were looking into the sun and reported to the tower this condition. We saw the field, entered left downwind and instructed the tower of this position. Tower instructed us to report base for 35. We did west/O response from the tower because of his involvement with another aircraft. The other aircraft was then sighted, and made a right 360 degree turn for avoidance. Could not go straight because of other runways and military aircraft. No report of another aircraft was mentioned to us. Tower was then confused as to which aircraft was which. Had to prompt tower for clearance to land. This incident, I feel, is a case of a breakdown in communication and too much concentration with 1 aircraft.

Original NASA ASRS Text

Title: NMAC ON APCH AT CTLED MIL FIELD.

Narrative: WE APCHED ARPT FROM THE W BEING RADAR VECTORED. TWR MENTIONED TO RPT FIELD. WE WERE LOOKING INTO THE SUN AND RPTED TO THE TWR THIS CONDITION. WE SAW THE FIELD, ENTERED LEFT DOWNWIND AND INSTRUCTED THE TWR OF THIS POS. TWR INSTRUCTED US TO RPT BASE FOR 35. WE DID W/O RESPONSE FROM THE TWR BECAUSE OF HIS INVOLVEMENT WITH ANOTHER ACFT. THE OTHER ACFT WAS THEN SIGHTED, AND MADE A RIGHT 360 DEG TURN FOR AVOIDANCE. COULD NOT GO STRAIGHT BECAUSE OF OTHER RWYS AND MIL ACFT. NO RPT OF ANOTHER ACFT WAS MENTIONED TO US. TWR WAS THEN CONFUSED AS TO WHICH ACFT WAS WHICH. HAD TO PROMPT TWR FOR CLRNC TO LAND. THIS INCIDENT, I FEEL, IS A CASE OF A BREAKDOWN IN COM AND TOO MUCH CONCENTRATION WITH 1 ACFT.

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.