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ARTCC controller intervened when flight crew were descending on a STAR arrival and questioned their altitude, and then advised that they had already gone through their assigned altitude and that they were only cleared to it and not through it. However, the flight crew both heard that they were cleared through it. In subsequent conversation ATC advised that there was no conflict.
| Attributes | |
| ACN | 395545 |
| Time | |
| Date | 199803 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pit |
| State Reference | PA |
| Altitude | msl bound lower : 13400 msl bound upper : 15300 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : zob |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 20000 flight time type : 8000 |
| ASRS Report | 395545 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 12 flight time total : 10700 flight time type : 7000 |
| ASRS Report | 395400 |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
We were on our descent into pittsburgh on the nesto arrival, cleared to 11000 ft with ZOB. ATC called us to 'hurry on down through 15000 ft' for traffic when we were about 15300 ft. We repeated the 'hurry on down...' transmission, 'we' being the captain, although the transmission was somewhat garbled from ATC. It was, however, read back clearly to ATC with no response. At 13600 ft descending, ATC asked us where we were going. I responded that we were cleared to 11000 ft and were descending to 11000 ft. ATC said that we had been told to 'hold at 15000 ft.' I repeated that we thought we had been told to hurry on down through 15000 ft. We asked about traffic conflicts, etc, and were told there was none. ATC did not say 'maintain' but 'hurry on down' on the original transmission. Supplemental information from acn 395400:a learjet was behind us and needed to get down but he hurried up and descended.
Original NASA ASRS Text
Title: ARTCC CTLR INTERVENED WHEN FLC WERE DSNDING ON A STAR ARR AND QUESTIONED THEIR ALT, AND THEN ADVISED THAT THEY HAD ALREADY GONE THROUGH THEIR ASSIGNED ALT AND THAT THEY WERE ONLY CLRED TO IT AND NOT THROUGH IT. HOWEVER, THE FLC BOTH HEARD THAT THEY WERE CLRED THROUGH IT. IN SUBSEQUENT CONVERSATION ATC ADVISED THAT THERE WAS NO CONFLICT.
Narrative: WE WERE ON OUR DSCNT INTO PITTSBURGH ON THE NESTO ARR, CLRED TO 11000 FT WITH ZOB. ATC CALLED US TO 'HURRY ON DOWN THROUGH 15000 FT' FOR TFC WHEN WE WERE ABOUT 15300 FT. WE REPEATED THE 'HURRY ON DOWN...' XMISSION, 'WE' BEING THE CAPT, ALTHOUGH THE XMISSION WAS SOMEWHAT GARBLED FROM ATC. IT WAS, HOWEVER, READ BACK CLRLY TO ATC WITH NO RESPONSE. AT 13600 FT DSNDING, ATC ASKED US WHERE WE WERE GOING. I RESPONDED THAT WE WERE CLRED TO 11000 FT AND WERE DSNDING TO 11000 FT. ATC SAID THAT WE HAD BEEN TOLD TO 'HOLD AT 15000 FT.' I REPEATED THAT WE THOUGHT WE HAD BEEN TOLD TO HURRY ON DOWN THROUGH 15000 FT. WE ASKED ABOUT TFC CONFLICTS, ETC, AND WERE TOLD THERE WAS NONE. ATC DID NOT SAY 'MAINTAIN' BUT 'HURRY ON DOWN' ON THE ORIGINAL XMISSION. SUPPLEMENTAL INFO FROM ACN 395400:A LEARJET WAS BEHIND US AND NEEDED TO GET DOWN BUT HE HURRIED UP AND DSNDED.
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.