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A CRJ200 crew accepted a lower altitude clearance then received a TCASII RA followed by a new ATC altitude assignment.
| Attributes | |
| ACN | 647629 |
| Time | |
| Date | 200502 |
| Place | |
| Locale Reference | atc facility : zjx.artcc |
| State Reference | US |
| Altitude | msl single value : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | cruise : enroute altitude change |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 5000 flight time type : 1800 |
| ASRS Report | 647629 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical non adherence : required legal separation non adherence : far non adherence : clearance |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
While flying from tpa to gsp; center cleared us down to a lower altitude. I set FL240 in the altitude alerter and then read back FL240. A few mins later center called opposite direction traffic. We saw the traffic on TCASII first; got a TA then an RA; started a climb; and then got a visual contact with a cpr jet. I told center we had started a climb because of the RA. Center responded with 'climb to FL250; you were never cleared for lower.' after clearing the traffic we were then cleared for lower and a frequency change. No further discussion was noted between myself and the controller.
Original NASA ASRS Text
Title: A CRJ200 CREW ACCEPTED A LOWER ALT CLRNC THEN RECEIVED A TCASII RA FOLLOWED BY A NEW ATC ALT ASSIGNMENT.
Narrative: WHILE FLYING FROM TPA TO GSP; CTR CLRED US DOWN TO A LOWER ALT. I SET FL240 IN THE ALT ALERTER AND THEN READ BACK FL240. A FEW MINS LATER CTR CALLED OPPOSITE DIRECTION TFC. WE SAW THE TFC ON TCASII FIRST; GOT A TA THEN AN RA; STARTED A CLB; AND THEN GOT A VISUAL CONTACT WITH A CPR JET. I TOLD CTR WE HAD STARTED A CLB BECAUSE OF THE RA. CTR RESPONDED WITH 'CLB TO FL250; YOU WERE NEVER CLRED FOR LOWER.' AFTER CLRING THE TFC WE WERE THEN CLRED FOR LOWER AND A FREQ CHANGE. NO FURTHER DISCUSSION WAS NOTED BTWN MYSELF AND THE CTLR.
Data retrieved from NASA's ASRS site as of January 2009 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.