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DC9 flight crew take evasive climb action due to opposite direction, same altitude conflicting traffic, only to conflict with another, same direction aircraft which was initially 2000 ft above. ZDC did not respond to the event apparently due to the traffic volume.
| Attributes | |
| ACN | 532745 |
| Time | |
| Date | 200111 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : gso.vortac |
| State Reference | NC |
| Altitude | msl bound lower : 27000 msl bound upper : 28200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Route In Use | enroute airway : j14.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 4200 flight time type : 1000 |
| ASRS Report | 532745 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other spatial deviation |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 21600 vertical : 1200 |
| Supplementary | |
| Problem Areas | FAA ATC Human Performance Environmental Factor |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
| Situations | |
| ATC Facility | procedure or policy : zdc.artcc |
Narrative:
While level at FL270 (DC9-30) 10 NM southwest of gso on J14, we received an RA command to climb. We climbed to FL282 and turned 20 degrees right (080 degrees). Conflicting traffic was a B737 converging form the opposite direction FL260 in a slow climb. At our peak altitude of FL282, the B737 was 1200 ft below on TCASII or FL270 our original altitude. To further compound this problem, a GA turbojet was 2000 ft above us. Same direction, same jet route within 2 mi of our position. To stay clear of the GA aircraft while climbing out of the B737's path, a climbing turn was required. Center never gave a traffic alert. In fact, ATC was so dominant on the frequency, continuously broadcasting, that we could never state our situation or intentions, (a big problem). Because, it was VMC throughout the maneuver, we always had visual contact with both aircraft and maintained sufficient separation.
Original NASA ASRS Text
Title: DC9 FLC TAKE EVASIVE CLB ACTION DUE TO OPPOSITE DIRECTION, SAME ALT CONFLICTING TFC, ONLY TO CONFLICT WITH ANOTHER, SAME DIRECTION ACFT WHICH WAS INITIALLY 2000 FT ABOVE. ZDC DID NOT RESPOND TO THE EVENT APPARENTLY DUE TO THE TFC VOLUME.
Narrative: WHILE LEVEL AT FL270 (DC9-30) 10 NM SW OF GSO ON J14, WE RECEIVED AN RA COMMAND TO CLB. WE CLBED TO FL282 AND TURNED 20 DEGS R (080 DEGS). CONFLICTING TFC WAS A B737 CONVERGING FORM THE OPPOSITE DIRECTION FL260 IN A SLOW CLB. AT OUR PEAK ALT OF FL282, THE B737 WAS 1200 FT BELOW ON TCASII OR FL270 OUR ORIGINAL ALT. TO FURTHER COMPOUND THIS PROB, A GA TURBOJET WAS 2000 FT ABOVE US. SAME DIRECTION, SAME JET RTE WITHIN 2 MI OF OUR POS. TO STAY CLR OF THE GA ACFT WHILE CLBING OUT OF THE B737'S PATH, A CLBING TURN WAS REQUIRED. CTR NEVER GAVE A TFC ALERT. IN FACT, ATC WAS SO DOMINANT ON THE FREQ, CONTINUOUSLY BROADCASTING, THAT WE COULD NEVER STATE OUR SIT OR INTENTIONS, (A BIG PROB). BECAUSE, IT WAS VMC THROUGHOUT THE MANEUVER, WE ALWAYS HAD VISUAL CONTACT WITH BOTH ACFT AND MAINTAINED SUFFICIENT SEPARATION.
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.