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Air carrier medium large transport at cruise altitude FL310 altitude deviation in response to TCASII RA.
| Attributes | |
| ACN | 192865 |
| Time | |
| Date | 199110 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jct |
| State Reference | TX |
| Altitude | msl bound lower : 31000 msl bound upper : 31900 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Trainer |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 20000 flight time type : 4200 |
| ASRS Report | 192865 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 240 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 192731 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude altitude deviation : overshoot non adherence : clearance non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 1800 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Received a 'TA' of an aircraft intruder at 5 O'clock our position 4100 ft below and climbing 3 mi out. Received RA 2-3 mi 5 O'clock our position and climbing. My first officer disconnected autoplt and complied with RA 1000-2000 FPM. Intruder aircraft continued to climb to 1800-2000 ft directly below our position. We climbed to 31900 ft. TCASII indicated clear of conflict. Intruder disappeared off TCASII monitor 7 O'clock our position. Abq ATC indicated intruder was a military MTR with clearance to FL280. He had no indication MTR busted altitude. Passenger doctor claimed to see aircraft directly below us. Cockpit did not see the aircraft. Suspect high vertical rate RA.
Original NASA ASRS Text
Title: ACR MLG AT CRUISE ALT FL310 ALTDEV IN RESPONSE TO TCASII RA.
Narrative: RECEIVED A 'TA' OF AN ACFT INTRUDER AT 5 O'CLOCK OUR POS 4100 FT BELOW AND CLBING 3 MI OUT. RECEIVED RA 2-3 MI 5 O'CLOCK OUR POS AND CLBING. MY FO DISCONNECTED AUTOPLT AND COMPLIED WITH RA 1000-2000 FPM. INTRUDER ACFT CONTINUED TO CLB TO 1800-2000 FT DIRECTLY BELOW OUR POS. WE CLBED TO 31900 FT. TCASII INDICATED CLR OF CONFLICT. INTRUDER DISAPPEARED OFF TCASII MONITOR 7 O'CLOCK OUR POS. ABQ ATC INDICATED INTRUDER WAS A MIL MTR WITH CLRNC TO FL280. HE HAD NO INDICATION MTR BUSTED ALT. PAX DOCTOR CLAIMED TO SEE ACFT DIRECTLY BELOW US. COCKPIT DID NOT SEE THE ACFT. SUSPECT HIGH VERT RATE RA.
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.