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An air carrier captain has a problem with ZTL controller when the controller issues a heading change and the flight crew thinks it is an airspeed change.
| Attributes | |
| ACN | 408590 |
| Time | |
| Date | 199807 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 14000 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl tower : hwo |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 85 flight time total : 4000 flight time type : 1500 |
| ASRS Report | 408590 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : clearance other anomaly other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Upon climb out from atl evening of jul/mon/98, ZTL was (as usual) very busy. Atl asked us what our airspeed was and we responded, 'approaching 320 KIAS.' center then said 'hold 310 KTS or less for your climb' and we acknowledged this call. Center then said 'now fly 250' only and since we were talking about airspeed before, I slowed to 250 KTS. Prior to handoff center then said they wanted me to 'fly heading 250 degrees, now switch to center on xyz frequency.'
Original NASA ASRS Text
Title: AN ACR CAPT HAS A PROB WITH ZTL CTLR WHEN THE CTLR ISSUES A HEADING CHANGE AND THE FLC THINKS IT IS AN AIRSPD CHANGE.
Narrative: UPON CLBOUT FROM ATL EVENING OF JUL/MON/98, ZTL WAS (AS USUAL) VERY BUSY. ATL ASKED US WHAT OUR AIRSPD WAS AND WE RESPONDED, 'APCHING 320 KIAS.' CTR THEN SAID 'HOLD 310 KTS OR LESS FOR YOUR CLB' AND WE ACKNOWLEDGED THIS CALL. CTR THEN SAID 'NOW FLY 250' ONLY AND SINCE WE WERE TALKING ABOUT AIRSPD BEFORE, I SLOWED TO 250 KTS. PRIOR TO HDOF CTR THEN SAID THEY WANTED ME TO 'FLY HDG 250 DEGS, NOW SWITCH TO CTR ON XYZ FREQ.'
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.