 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ZTL amends E145 climb altitude to FL230 as the aircraft is climbing through the altitude and then responds to a TCASII RA. Pilot blames perceived FAA readback policy if he was involved in an incorrect readback.
| Attributes | |
| ACN | 529975 |
| Time | |
| Date | 200111 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ztl.artcc |
| State Reference | GA |
| Altitude | msl bound lower : 23000 msl bound upper : 23600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 5300 flight time type : 1200 |
| ASRS Report | 529975 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 15000 vertical : 400 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
| Situations | |
| ATC Facility | procedure or policy : ztl.artcc |
Narrative:
We were cleared to FL260 (although our final was FL250). Climbing through FL230, atl said 'maintain FL230.' we stopped the climb by FL236 and told atl we were cleared FL260. They responded 'maintain FL230, report level.' at this time, we received an RA 'monitor vertical speed' command. As we descended, I looked for and acquired the traffic. Atl again asked for our altitude and I responded FL232 descending and traffic in sight.' no other communication transpired. Eventually, we were cleared to FL250, our final. It's possible that an error was made assigning us FL260 and that we responded to another aircraft's call sign. However, no correction was made to our readback of FL260. I feel ATC (the FAA's) change to their readback correction responsibility is unsafe and makes a readback of little use. Its point being to protect us from just such an event. This policy needs to be changed such that a readback is required and if no correction is made, we are legal and safe to continue, and the onus is on the controller.
Original NASA ASRS Text
Title: ZTL AMENDS E145 CLB ALT TO FL230 AS THE ACFT IS CLBING THROUGH THE ALT AND THEN RESPONDS TO A TCASII RA. PLT BLAMES PERCEIVED FAA READBACK POLICY IF HE WAS INVOLVED IN AN INCORRECT READBACK.
Narrative: WE WERE CLRED TO FL260 (ALTHOUGH OUR FINAL WAS FL250). CLBING THROUGH FL230, ATL SAID 'MAINTAIN FL230.' WE STOPPED THE CLB BY FL236 AND TOLD ATL WE WERE CLRED FL260. THEY RESPONDED 'MAINTAIN FL230, RPT LEVEL.' AT THIS TIME, WE RECEIVED AN RA 'MONITOR VERT SPD' COMMAND. AS WE DSNDED, I LOOKED FOR AND ACQUIRED THE TFC. ATL AGAIN ASKED FOR OUR ALT AND I RESPONDED FL232 DSNDING AND TFC IN SIGHT.' NO OTHER COM TRANSPIRED. EVENTUALLY, WE WERE CLRED TO FL250, OUR FINAL. IT'S POSSIBLE THAT AN ERROR WAS MADE ASSIGNING US FL260 AND THAT WE RESPONDED TO ANOTHER ACFT'S CALL SIGN. HOWEVER, NO CORRECTION WAS MADE TO OUR READBACK OF FL260. I FEEL ATC (THE FAA'S) CHANGE TO THEIR READBACK CORRECTION RESPONSIBILITY IS UNSAFE AND MAKES A READBACK OF LITTLE USE. ITS POINT BEING TO PROTECT US FROM JUST SUCH AN EVENT. THIS POLICY NEEDS TO BE CHANGED SUCH THAT A READBACK IS REQUIRED AND IF NO CORRECTION IS MADE, WE ARE LEGAL AND SAFE TO CONTINUE, AND THE ONUS IS ON 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.