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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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TCASII RA. Flight crew followed TCASII command to climb. Alert caused by aircraft climbing under reporter aircraft. ATC didn't notify flight crew of possible TCASII.
| Attributes | |
| ACN | 336560 |
| Time | |
| Date | 199605 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : gsh |
| State Reference | IN |
| Altitude | msl bound lower : 26000 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 200 flight time total : 4500 flight time type : 3000 |
| ASRS Report | 336560 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 17000 flight time type : 3000 |
| ASRS Report | 336564 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| 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 | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
In level cruise flight at FL260 the TCASII gave us a TA. The aircraft was climbing under us from the aircraft right 2 O'clock position. The TA turned into an RA 'climb, climb.' we climbed to FL270 and followed TCASII commands. Advised ATC. She said the aircraft was climbing to FL250. When once clear of conflict, descended back to FL260.
Original NASA ASRS Text
Title: TCASII RA. FLC FOLLOWED TCASII COMMAND TO CLB. ALERT CAUSED BY ACFT CLBING UNDER RPTR ACFT. ATC DIDN'T NOTIFY FLC OF POSSIBLE TCASII.
Narrative: IN LEVEL CRUISE FLT AT FL260 THE TCASII GAVE US A TA. THE ACFT WAS CLBING UNDER US FROM THE ACFT R 2 O'CLOCK POS. THE TA TURNED INTO AN RA 'CLB, CLB.' WE CLBED TO FL270 AND FOLLOWED TCASII COMMANDS. ADVISED ATC. SHE SAID THE ACFT WAS CLBING TO FL250. WHEN ONCE CLR OF CONFLICT, DSNDED BACK TO FL260.
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.