Narrative:

Both aircraft NORDO. Air carrier X initially not NORDO with ZTL. Both aircraft crossing at lagrange VORTAC. Civilian aircraft Y NORDO with ZTL (2 sectors). Handoff from high altitude ZTL sector to us. At this time, air carrier X went NORDO. All forms of communications tried to establish communications. Area manager calls air carrier company operations, they refuse to take action, believe call is a crank. Air carrier X TCASII equipped does not execute RA, and does not take descent clearance after communications are reestablished. Civilian aircraft didn't file TCASII equipped. Civilian aircraft Y communications established at 4 mi and closing. Climbed to FL350, aircraft miss plus 500 ft and approximately 1-3 mi crossing. Air carrier X is found on previous ZME frequency. Civilian aircraft found on previous ZHU frequency. Supplemental information from acn 251825: air carrier X was flying eastbound, direct to the lagrange VOR at 33000 ft. Air carrier X lost contact with the center. While trying to reestablish contact we received a TA from TCASII. Aircraft Y at our altitude at about 2 O'clock, 10 mi, nwbound and converging moments later received an RA on the same traffic and a monitor vertical speed. So we followed the TCASII command and started to descend. The other traffic had started to climb. We descended to about 32600 ft and received a clear of conflict command from TCASII then returned to 33000 ft. Shortly thereafter, reestablished communication with the center.

Google
 

Original NASA ASRS Text

Title: NORDO ACFT ACR X TCASII RA SAME ALT ASSIGNED CPR Y HAD LTSS. EVASIVE ACTION TAKEN.

Narrative: BOTH ACFT NORDO. ACR X INITIALLY NOT NORDO WITH ZTL. BOTH ACFT XING AT LAGRANGE VORTAC. CIVILIAN ACFT Y NORDO WITH ZTL (2 SECTORS). HDOF FROM HIGH ALT ZTL SECTOR TO US. AT THIS TIME, ACR X WENT NORDO. ALL FORMS OF COMS TRIED TO ESTABLISH COMS. AREA MGR CALLS ACR COMPANY OPS, THEY REFUSE TO TAKE ACTION, BELIEVE CALL IS A CRANK. ACR X TCASII EQUIPPED DOES NOT EXECUTE RA, AND DOES NOT TAKE DSCNT CLRNC AFTER COMS ARE REESTABLISHED. CIVILIAN ACFT DIDN'T FILE TCASII EQUIPPED. CIVILIAN ACFT Y COMS ESTABLISHED AT 4 MI AND CLOSING. CLBED TO FL350, ACFT MISS PLUS 500 FT AND APPROX 1-3 MI XING. ACR X IS FOUND ON PREVIOUS ZME FREQ. CIVILIAN ACFT FOUND ON PREVIOUS ZHU FREQ. SUPPLEMENTAL INFORMATION FROM ACN 251825: ACR X WAS FLYING EBOUND, DIRECT TO THE LAGRANGE VOR AT 33000 FT. ACR X LOST CONTACT WITH THE CTR. WHILE TRYING TO REESTABLISH CONTACT WE RECEIVED A TA FROM TCASII. ACFT Y AT OUR ALT AT ABOUT 2 O'CLOCK, 10 MI, NWBOUND AND CONVERGING MOMENTS LATER RECEIVED AN RA ON THE SAME TFC AND A MONITOR VERT SPD. SO WE FOLLOWED THE TCASII COMMAND AND STARTED TO DSND. THE OTHER TFC HAD STARTED TO CLB. WE DSNDED TO ABOUT 32600 FT AND RECEIVED A CLR OF CONFLICT COMMAND FROM TCASII THEN RETURNED TO 33000 FT. SHORTLY THEREAFTER, REESTABLISHED COM WITH THE CTR.

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.