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Captain of air carrier large transport aircraft deviation from assigned climb to respond to a TCASII RA.
| Attributes | |
| ACN | 216415 |
| Time | |
| Date | 199207 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : tag |
| State Reference | FO |
| Altitude | msl bound lower : 24000 msl bound upper : 24400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute airway : rktt |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 80 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 216415 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Climbing through 23500 ft over tag VOR (south of seoul, korea) we received a TCASII TA (12 O'clock -19). We were climbing at 1000 FPM. Passing through 24300 ft we were given a TCASII RA to descend approximately 2000 FPM. At this time the traffic was 12 O'clock -1200 ft. By the time we had stopped the climb and started down the RA switched to climb approximately 2000 FPM and a climb voice command. The RA was given as we passed 24300 ft. We started down by approximately 24400 and started back climbing by about 24200 ft. The closest altitude deviation we saw was -10. We advised tagbilaran control that we had a TCASII RA and asked about the traffic. We were told the the target was at 24000 ft.
Original NASA ASRS Text
Title: CAPT OF ACR LGT ACFT DEV FROM ASSIGNED CLB TO RESPOND TO A TCASII RA.
Narrative: CLBING THROUGH 23500 FT OVER TAG VOR (S OF SEOUL, KOREA) WE RECEIVED A TCASII TA (12 O'CLOCK -19). WE WERE CLBING AT 1000 FPM. PASSING THROUGH 24300 FT WE WERE GIVEN A TCASII RA TO DSND APPROX 2000 FPM. AT THIS TIME THE TFC WAS 12 O'CLOCK -1200 FT. BY THE TIME WE HAD STOPPED THE CLB AND STARTED DOWN THE RA SWITCHED TO CLB APPROX 2000 FPM AND A CLB VOICE COMMAND. THE RA WAS GIVEN AS WE PASSED 24300 FT. WE STARTED DOWN BY APPROX 24400 AND STARTED BACK CLBING BY ABOUT 24200 FT. THE CLOSEST ALTDEV WE SAW WAS -10. WE ADVISED TAGBILARAN CTL THAT WE HAD A TCASII RA AND ASKED ABOUT THE TFC. WE WERE TOLD THE THE TARGET WAS AT 24000 FT.
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.