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An air carrier captain reported that while climbing to FL240 TCAS alerted traffic; then adjust vertical speed and finally descend as a RA about traffic descending to FL260. ZDC did not issue traffic.
| Attributes | |
| ACN | 1067893 |
| Time | |
| Date | 201302 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZDC.ARTCC |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
Narrative:
Cleared to FL240. Between FL230 and FL240 received 'traffic' alert followed by 'adjust vertical speed' followed again by 'descend'. Crossing traffic at FL260. Closure rate may have been a factor. We were not advised by ATC of any traffic. We notified ATC of the RA and leveled normally at FL240. I am not sure if the traffic at FL260 had descended below FL260. To my knowledge; there was no loss of separation. Perhaps a notification from ATC about oncoming traffic would have been helpful.
Original NASA ASRS Text
Title: An Air Carrier Captain reported that while climbing to FL240 TCAS alerted TRAFFIC; then ADJUST VERTICAL SPEED and finally DESCEND as a RA about traffic descending to FL260. ZDC did not issue traffic.
Narrative: Cleared to FL240. Between FL230 and FL240 received 'TRAFFIC' alert followed by 'ADJUST VERTICAL SPEED' followed again by 'DESCEND'. Crossing traffic at FL260. Closure rate may have been a factor. We were not advised by ATC of any traffic. We notified ATC of the RA and leveled normally at FL240. I am not sure if the traffic at FL260 had descended below FL260. To my knowledge; there was no loss of separation. Perhaps a notification from ATC about oncoming traffic would have been helpful.
Data retrieved from NASA's ASRS site as of July 2013 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.