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B737 descending through FL275 for FL250 told by ARTCC that clearance was for FL290 for jaxsn crossing.
| Attributes | |
| ACN | 451991 |
| Time | |
| Date | 199910 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : jaxsn |
| State Reference | VA |
| Altitude | msl bound lower : 25000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude descent : vacating altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp pilot : flight engineer |
| ASRS Report | 451991 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 3500 flight time type : 2000 |
| ASRS Report | 452122 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : far non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar other flight crewa |
| Resolutory Action | controller : provided flight assist controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We accepted a clearance to cross 35 mi southwest of jaxsn intersection at FL250. While passing FL275, we were queried as to our altitude. We responded and were told that the controller thought the clearance was for FL290, but that no harm was done. Controller missed our initially incorrect readback.
Original NASA ASRS Text
Title: B737 DSNDING THROUGH FL275 FOR FL250 TOLD BY ARTCC THAT CLRNC WAS FOR FL290 FOR JAXSN XING.
Narrative: WE ACCEPTED A CLRNC TO CROSS 35 MI SW OF JAXSN INTXN AT FL250. WHILE PASSING FL275, WE WERE QUERIED AS TO OUR ALT. WE RESPONDED AND WERE TOLD THAT THE CTLR THOUGHT THE CLRNC WAS FOR FL290, BUT THAT NO HARM WAS DONE. CTLR MISSED OUR INITIALLY INCORRECT READBACK.
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.