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A B737-300 flight crew climbed above the assigned altitude and received a TCASII RA. The RA maneuver placed both aircraft at the same altitude near idu.
| Attributes | |
| ACN | 451506 |
| Time | |
| Date | 199910 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | TX |
| Altitude | msl single value : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc tower : ftw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | general aviation : corporate |
| Make Model Name | King Air 100 A/B |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 17000 flight time type : 12000 |
| ASRS Report | 451506 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 5850 flight time type : 250 |
| ASRS Report | 451762 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued alert flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 12000 vertical : 250 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On climb out with ZHU, we were issued a clearance to FL190. First officer dialed it, I called it. This was for crossing king air traffic. First officer got off frequency to get WX for sat. When returning to frequency, he looked at the altitude window which was reading FL200 and thought that ATC had issued us another clearance. At that moment, we received a TA/RA crossing, climb command. After completing the maneuver, we were at the same altitude as the king air. We had a visual on him and passed him from well behind and to the right (about 2 mi). I knew we had lost our separation. The controller asked if we were maintaining FL190. I looked at the altitude window showing FL200 and stated we were cleared to FL200. After the transmission, I knew that was not right, but had no time to tell the controller.
Original NASA ASRS Text
Title: A B737-300 FLC CLBED ABOVE THE ASSIGNED ALT AND RECEIVED A TCASII RA. THE RA MANEUVER PLACED BOTH ACFT AT THE SAME ALT NEAR IDU.
Narrative: ON CLBOUT WITH ZHU, WE WERE ISSUED A CLRNC TO FL190. FO DIALED IT, I CALLED IT. THIS WAS FOR XING KING AIR TFC. FO GOT OFF FREQ TO GET WX FOR SAT. WHEN RETURNING TO FREQ, HE LOOKED AT THE ALT WINDOW WHICH WAS READING FL200 AND THOUGHT THAT ATC HAD ISSUED US ANOTHER CLRNC. AT THAT MOMENT, WE RECEIVED A TA/RA XING, CLB COMMAND. AFTER COMPLETING THE MANEUVER, WE WERE AT THE SAME ALT AS THE KING AIR. WE HAD A VISUAL ON HIM AND PASSED HIM FROM WELL BEHIND AND TO THE R (ABOUT 2 MI). I KNEW WE HAD LOST OUR SEPARATION. THE CTLR ASKED IF WE WERE MAINTAINING FL190. I LOOKED AT THE ALT WINDOW SHOWING FL200 AND STATED WE WERE CLRED TO FL200. AFTER THE XMISSION, I KNEW THAT WAS NOT RIGHT, BUT HAD NO TIME TO TELL THE CTLR.
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.