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An air carrier pilot reported responding to a TCAS RA for a flight of two military aircraft.
| Attributes | |
| ACN | 1730097 |
| Time | |
| Date | 202002 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | SAN.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B737 Next Generation Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR LUCKI ONE |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Military |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 214 Flight Crew Total 12244 Flight Crew Type 9256 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC Deviation - Procedural Published Material / Policy |
Narrative:
I the captain was the pilot flying using the autopilot while flying on the RNAV arrival. Center gave us a vector south off of the lateral path and cleared us to descend to an altitude of 24000 feet. After 1 to 2 minutes on this vector; ATC re-cleared us direct to a fix and to descend to an altitude of 13000 feet. We turned direct and initiated the descent on the autopilot. Almost as soon as we began the descent; we received a TA 'traffic; traffic' followed immediately by an RA 'climb; climb now; climb; climb now'. As soon as I heard the TA I started looking for the traffic which appeared to be a flight of 2 aircraft on TCAS and then had to immediately respond to the RA by disconnecting the autopilot and auto-throttles and then following the RA climb guidance. Neither the first officer nor I saw the traffic. After receiving a 'clear of conflict' I re-engaged the autopilot and auto-throttles and resumed the previous ATC clearance. We reported the RA to ATC. ATC said that they'd had several ras recently due to a change in departure procedures. The remainder of the flight continued safely and we landed without further incident.
Original NASA ASRS Text
Title: An Air Carrier pilot reported responding to a TCAS RA for a flight of two military aircraft.
Narrative: I the Captain was the Pilot Flying using the autopilot while flying on the RNAV Arrival. Center gave us a vector south off of the lateral path and cleared us to descend to an altitude of 24000 feet. After 1 to 2 minutes on this vector; ATC re-cleared us direct to a fix and to descend to an altitude of 13000 feet. We turned direct and initiated the descent on the autopilot. Almost as soon as we began the descent; we received a TA 'Traffic; traffic' followed immediately by an RA 'Climb; climb now; climb; climb now'. As soon as I heard the TA I started looking for the traffic which appeared to be a flight of 2 aircraft on TCAS and then had to immediately respond to the RA by disconnecting the autopilot and auto-throttles and then following the RA Climb guidance. Neither the First Officer nor I saw the traffic. After receiving a 'Clear of conflict' I re-engaged the autopilot and auto-throttles and resumed the previous ATC clearance. We reported the RA to ATC. ATC said that they'd had several RAs recently due to a change in Departure Procedures. The remainder of the flight continued safely and we landed without further incident.
Data retrieved from NASA's ASRS site 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.