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Air carrier medium large transport flight crew misinterps climb speed restriction on a visual separation clearance.
| Attributes | |
| ACN | 147171 |
| Time | |
| Date | 199005 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : clt |
| State Reference | NC |
| Altitude | msl bound lower : 3000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl tracon : clt |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure other departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 147171 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance non adherence : published procedure other anomaly |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Deviation other |
Narrative:
Clt departure on heading. Clt departure controller asked if we saw an large transport ahead of us. We said 'yes'. Clt departure said 'you will be following that aircraft. Keep him in sight and follow him normal'. Given heading to intercept clt 189 degree right and switched to atl center. We climbed to 12000' and accelerated up to normal speed of 310 KTS. Atl came back and asked speed. We told him. Atl said, 'we had a speed restriction of 250 KTS until ok'ed by ATC'. We said 'we thought we were doing airspeed normally'. Atl slowed us to 280 KTS then later normal speed. When clt departure said 'normal' that does not mean 'speed normal'. Again ATC communication.
Original NASA ASRS Text
Title: ACR MLG FLT CREW MISINTERPS CLIMB SPEED RESTRICTION ON A VISUAL SEPARATION CLRNC.
Narrative: CLT DEP ON HDG. CLT DEP CTLR ASKED IF WE SAW AN LGT AHEAD OF US. WE SAID 'YES'. CLT DEP SAID 'YOU WILL BE FOLLOWING THAT ACFT. KEEP HIM IN SIGHT AND FOLLOW HIM NORMAL'. GIVEN HDG TO INTERCEPT CLT 189 DEG R AND SWITCHED TO ATL CTR. WE CLBED TO 12000' AND ACCELERATED UP TO NORMAL SPD OF 310 KTS. ATL CAME BACK AND ASKED SPD. WE TOLD HIM. ATL SAID, 'WE HAD A SPD RESTRICTION OF 250 KTS UNTIL OK'ED BY ATC'. WE SAID 'WE THOUGHT WE WERE DOING AIRSPD NORMALLY'. ATL SLOWED US TO 280 KTS THEN LATER NORMAL SPD. WHEN CLT DEP SAID 'NORMAL' THAT DOES NOT MEAN 'SPD NORMAL'. AGAIN ATC COM.
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.