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Close proximity air carrier medium large transport two mtrs on J2 west of gbn.
| Attributes | |
| ACN | 193495 |
| Time | |
| Date | 199110 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : gbn |
| State Reference | AZ |
| Altitude | msl bound lower : 28000 msl bound upper : 28500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : j2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Trainer |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 80 flight time total : 7140 |
| ASRS Report | 193495 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 19900 flight time type : 1000 |
| ASRS Report | 193551 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 1500 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
A 'TCASII' TA indicated traffic approximately 2 1/2 mi in front of us and 3500 ft below, climbing. Within a few seconds the TCASII 'RA' was displayed with a 'climb' indicated on the vertical speed and announced over the audio warning. I responded immediately, climbing to 28500 ft with a vertical speed of approximately 2300 FPM. The captain told lax center that we were responding to a 'TCASII advisory.' center told us to 'maintain FL280' and that the traffic was a flight of 2 aircraft. By this time 'TCASII' indicated 'clear of traffic.' it was displaying the traffic as 1 mi behind us and 500 ft above. We returned to FL280. We never saw the traffic.
Original NASA ASRS Text
Title: CLOSE PROX ACR MLG TWO MTRS ON J2 W OF GBN.
Narrative: A 'TCASII' TA INDICATED TFC APPROX 2 1/2 MI IN FRONT OF US AND 3500 FT BELOW, CLBING. WITHIN A FEW SECONDS THE TCASII 'RA' WAS DISPLAYED WITH A 'CLB' INDICATED ON THE VERT SPD AND ANNOUNCED OVER THE AUDIO WARNING. I RESPONDED IMMEDIATELY, CLBING TO 28500 FT WITH A VERT SPD OF APPROX 2300 FPM. THE CAPT TOLD LAX CENTER THAT WE WERE RESPONDING TO A 'TCASII ADVISORY.' CENTER TOLD US TO 'MAINTAIN FL280' AND THAT THE TFC WAS A FLT OF 2 ACFT. BY THIS TIME 'TCASII' INDICATED 'CLR OF TFC.' IT WAS DISPLAYING THE TFC AS 1 MI BEHIND US AND 500 FT ABOVE. WE RETURNED TO FL280. WE NEVER SAW THE TFC.
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.