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B747 flight crew requested FL310 from ATC which was not granted. The next controller seemed to be upset that the aircraft was not at FL310.
| Attributes | |
| ACN | 737028 |
| Time | |
| Date | 200704 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : czvr.artcc |
| State Reference | BC |
| Altitude | msl single value : 30000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : czvr.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 180 flight time total : 18000 flight time type : 1400 |
| ASRS Report | 737028 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
On initial check-in with czvr center; we requested climb from FL300 to FL310. We were not given climb clearance so remained at FL300. Approaching ornai intersection; controller asked our altitude and I reported FL300. He told us to climb to FL310. It was obvious from his tone that he expected us to be at FL310. I do not have any recollection of being previously cleared to FL310.
Original NASA ASRS Text
Title: B747 FLT CREW REQUESTED FL310 FROM ATC WHICH WAS NOT GRANTED. THE NEXT CONTROLLER SEEMED TO BE UPSET THAT THE ACFT WAS NOT AT FL310.
Narrative: ON INITIAL CHK-IN WITH CZVR CTR; WE REQUESTED CLB FROM FL300 TO FL310. WE WERE NOT GIVEN CLB CLRNC SO REMAINED AT FL300. APCHING ORNAI INTXN; CTLR ASKED OUR ALT AND I RPTED FL300. HE TOLD US TO CLB TO FL310. IT WAS OBVIOUS FROM HIS TONE THAT HE EXPECTED US TO BE AT FL310. I DO NOT HAVE ANY RECOLLECTION OF BEING PREVIOUSLY CLRED TO FL310.
Data retrieved from NASA's ASRS site as of January 2009 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.