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TCAS RA. Flight crew climbed aircraft 800' for resolution then returned to 24000'. Traffic conflict was observed 2200' below and one mile.
| Attributes | |
| ACN | 173020 |
| Time | |
| Date | 199103 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : amg |
| State Reference | GA |
| Altitude | msl bound lower : 24000 msl bound upper : 24800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx tower : pit |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 flight time type : 8000 |
| ASRS Report | 173020 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 7000 flight time type : 1500 |
| ASRS Report | 173118 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | 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 | horizontal : 6000 vertical : 2200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While level at FL240 TCAS issued a traffic alert. The only aircraft shown on the TCAS screen was climbing to FL230 heading north and presently 2500' below our altitude. When that aircraft came within 2200' the TCAS issued a traffic resolution instructing us to 'climb'. I immediately initiated a climb and informed ATC. First officer climbed the aircraft to 24800' at which point the other aircraft was no longer a threat. Then returned to assigned altitude of FL240.
Original NASA ASRS Text
Title: TCAS RA. FLT CREW CLIMBED ACFT 800' FOR RESOLUTION THEN RETURNED TO 24000'. TRAFFIC CONFLICT WAS OBSERVED 2200' BELOW AND ONE MILE.
Narrative: WHILE LEVEL AT FL240 TCAS ISSUED A TFC ALERT. THE ONLY ACFT SHOWN ON THE TCAS SCREEN WAS CLBING TO FL230 HDG N AND PRESENTLY 2500' BELOW OUR ALT. WHEN THAT ACFT CAME WITHIN 2200' THE TCAS ISSUED A TFC RESOLUTION INSTRUCTING US TO 'CLB'. I IMMEDIATELY INITIATED A CLB AND INFORMED ATC. F/O CLBED THE ACFT TO 24800' AT WHICH POINT THE OTHER ACFT WAS NO LONGER A THREAT. THEN RETURNED TO ASSIGNED ALT OF FL240.
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.