Narrative:

While en route from waco (act), I made a request to ARTCC for the VOR/DME runway 28 approach into cll as opposed to the back course runway 16 approach which was in use. The descent for this approach was through a cloud layer. My final vector and approach clearance allowed me to descend below the clouds into VFR conditions. As I descended through the broken/scattered clouds, I visually acquired the air carrier Y brasilia. No traffic calls were made to me concerning this aircraft. Minimum IFR separation was not provided by ARTCC. In my initial request for the VOR DME runway 28 approach, I specified that I wanted to circle-to-land runway 16. ZHU advised cll tower that I desired a 'west missed.' tower delayed and hesitated when I requested the circle. My circle-to-land was authority/authorized to runway 22. This once again brought me 'close' to the brasilia who by this time was on short final to runway 16. Spacing was adequate, but needed improvement. I have reviewed the audio tapes with the manager of cll tower and request that you do the same in addition to radar tapes from ZHU. I feel that I was not provided with acceptable service from either facility. I feel that on the ZHU mistake, a shift change was to blame. Also, on the college station portion was a result of tower operating both UHF/VHF tower frequencys in addition to ground control. She was working several aircraft and ground vehicles which contributed to an undue workload.

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Original NASA ASRS Text

Title: PLT IN C172 ENRTE FROM ACT TO CLL REQUESTS VOR DME TO RWY 28 CIRCLE TO RWY 16. DURING THE APCH AND MANEUVER, THE PLT SPOTTED AN E120 BRASILIA AND BELIEVED STANDARD SEPARATION HAD BEEN COMPROMISED.

Narrative: WHILE ENRTE FROM WACO (ACT), I MADE A REQUEST TO ARTCC FOR THE VOR/DME RWY 28 APCH INTO CLL AS OPPOSED TO THE BACK COURSE RWY 16 APCH WHICH WAS IN USE. THE DSCNT FOR THIS APCH WAS THROUGH A CLOUD LAYER. MY FINAL VECTOR AND APCH CLRNC ALLOWED ME TO DSND BELOW THE CLOUDS INTO VFR CONDITIONS. AS I DSNDED THROUGH THE BROKEN/SCATTERED CLOUDS, I VISUALLY ACQUIRED THE ACR Y BRASILIA. NO TFC CALLS WERE MADE TO ME CONCERNING THIS ACFT. MINIMUM IFR SEPARATION WAS NOT PROVIDED BY ARTCC. IN MY INITIAL REQUEST FOR THE VOR DME RWY 28 APCH, I SPECIFIED THAT I WANTED TO CIRCLE-TO-LAND RWY 16. ZHU ADVISED CLL TWR THAT I DESIRED A 'W MISSED.' TWR DELAYED AND HESITATED WHEN I REQUESTED THE CIRCLE. MY CIRCLE-TO-LAND WAS AUTH TO RWY 22. THIS ONCE AGAIN BROUGHT ME 'CLOSE' TO THE BRASILIA WHO BY THIS TIME WAS ON SHORT FINAL TO RWY 16. SPACING WAS ADEQUATE, BUT NEEDED IMPROVEMENT. I HAVE REVIEWED THE AUDIO TAPES WITH THE MGR OF CLL TWR AND REQUEST THAT YOU DO THE SAME IN ADDITION TO RADAR TAPES FROM ZHU. I FEEL THAT I WAS NOT PROVIDED WITH ACCEPTABLE SVC FROM EITHER FACILITY. I FEEL THAT ON THE ZHU MISTAKE, A SHIFT CHANGE WAS TO BLAME. ALSO, ON THE COLLEGE STATION PORTION WAS A RESULT OF TWR OPERATING BOTH UHF/VHF TWR FREQS IN ADDITION TO GND CTL. SHE WAS WORKING SEVERAL ACFT AND GND VEHICLES WHICH CONTRIBUTED TO AN UNDUE WORKLOAD.

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.