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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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After being issued a pilot's discretion descent and advising the controller they were leaving the original altitude, a flight crew is told the clearance was for a different aircraft.
| Attributes | |
| ACN | 507250 |
| Time | |
| Date | 200104 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : shv.airport |
| State Reference | LA |
| Altitude | msl bound lower : 9000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 60 flight time total : 2500 flight time type : 40 |
| ASRS Report | 507250 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : clearance |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
Flying at 17000 ft headed from iah to shv, the first officer and I were given 'pilot's discretion to 3000 ft.' we read back 'pilot's discretion to 3000 ft' and both verified that 3000 ft had been put in the altitude alerter. We advised the controller we were beginning our descent. Through 9000 ft, the controller told us to 'get back to 10000 ft.' when we queried him about the discretion to 3000 ft, he told us that was an instruction for a different aircraft. We promptly went to 10000 ft, but both of us were sure he'd given us discretion to 3000 ft.
Original NASA ASRS Text
Title: AFTER BEING ISSUED A PLT'S DISCRETION DSCNT AND ADVISING THE CTLR THEY WERE LEAVING THE ORIGINAL ALT, A FLT CREW IS TOLD THE CLRNC WAS FOR A DIFFERENT ACFT.
Narrative: FLYING AT 17000 FT HEADED FROM IAH TO SHV, THE FO AND I WERE GIVEN 'PLT'S DISCRETION TO 3000 FT.' WE READ BACK 'PLT'S DISCRETION TO 3000 FT' AND BOTH VERIFIED THAT 3000 FT HAD BEEN PUT IN THE ALT ALERTER. WE ADVISED THE CTLR WE WERE BEGINNING OUR DSCNT. THROUGH 9000 FT, THE CTLR TOLD US TO 'GET BACK TO 10000 FT.' WHEN WE QUERIED HIM ABOUT THE DISCRETION TO 3000 FT, HE TOLD US THAT WAS AN INSTRUCTION FOR A DIFFERENT ACFT. WE PROMPTLY WENT TO 10000 FT, BUT BOTH OF US WERE SURE HE'D GIVEN US DISCRETION TO 3000 FT.
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.