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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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ARTCC radar controller climbs a C650 to FL200 and xfers the aircraft to another ARTCC controller's frequency apparently in conflict with another aircraft. The second controller initiates investigation and reports to pilot subsequently that 'problem' is with ATC instructions. Pilot states that sometimes controllers don't listen up to pilot readbacks.
| Attributes | |
| ACN | 413310 |
| Time | |
| Date | 199809 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : avl |
| State Reference | NC |
| Altitude | msl bound lower : 19500 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | general aviation : corporate |
| Make Model Name | Citation III, VI, VII |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 6500 flight time type : 1300 |
| ASRS Report | 413310 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
IFR flight plan, filed for FL250. Level at 17000 ft direct chs from avl. The controller was overloaded with traffic. The frequency was 135.35, the time XA20 local when the controller said '...climb to FL200 and ZTL on 124.70.' we read back '124.70 and climb to FL200, good day.' we checked in on 124.70 and said '...out of FL195, climbing FL200.' the controller queried our climb instructions and said to descend back down to FL190. I asked if there was a problem, he said yes but that he believed the separation was maintained anyway. The controller said he would check with the last controller to see what climb instructions we were given. 'Are you sure you were given FL200?' he asked. 'Absolutely!' we replied. At XA29 the controller called and said that the problem was ATC's fault and that I would hear no more about the 'problem.' the controller who gave the climb was overloaded with aircraft on his frequency. The controllers sometimes don't 'listen up' when the pilots are reading back what they are instructed to do. It works both ways. We all need to listen up.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR CLBS A C650 TO FL200 AND XFERS THE ACFT TO ANOTHER ARTCC CTLR'S FREQ APPARENTLY IN CONFLICT WITH ANOTHER ACFT. THE SECOND CTLR INITIATES INVESTIGATION AND RPTS TO PLT SUBSEQUENTLY THAT 'PROB' IS WITH ATC INSTRUCTIONS. PLT STATES THAT SOMETIMES CTLRS DON'T LISTEN UP TO PLT READBACKS.
Narrative: IFR FLT PLAN, FILED FOR FL250. LEVEL AT 17000 FT DIRECT CHS FROM AVL. THE CTLR WAS OVERLOADED WITH TFC. THE FREQ WAS 135.35, THE TIME XA20 LCL WHEN THE CTLR SAID '...CLB TO FL200 AND ZTL ON 124.70.' WE READ BACK '124.70 AND CLB TO FL200, GOOD DAY.' WE CHKED IN ON 124.70 AND SAID '...OUT OF FL195, CLBING FL200.' THE CTLR QUERIED OUR CLB INSTRUCTIONS AND SAID TO DSND BACK DOWN TO FL190. I ASKED IF THERE WAS A PROB, HE SAID YES BUT THAT HE BELIEVED THE SEPARATION WAS MAINTAINED ANYWAY. THE CTLR SAID HE WOULD CHK WITH THE LAST CTLR TO SEE WHAT CLB INSTRUCTIONS WE WERE GIVEN. 'ARE YOU SURE YOU WERE GIVEN FL200?' HE ASKED. 'ABSOLUTELY!' WE REPLIED. AT XA29 THE CTLR CALLED AND SAID THAT THE PROB WAS ATC'S FAULT AND THAT I WOULD HEAR NO MORE ABOUT THE 'PROB.' THE CTLR WHO GAVE THE CLB WAS OVERLOADED WITH ACFT ON HIS FREQ. THE CTLRS SOMETIMES DON'T 'LISTEN UP' WHEN THE PLTS ARE READING BACK WHAT THEY ARE INSTRUCTED TO DO. IT WORKS BOTH WAYS. WE ALL NEED TO LISTEN UP.
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.