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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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ATC said aircraft was cleared to 12000 ft. Flight crew said it was 10000 ft. When controller saw aircraft approaching 11000 ft, he questioned what they were doing.
| Attributes | |
| ACN | 322560 |
| Time | |
| Date | 199512 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lyh |
| State Reference | VA |
| Altitude | msl bound lower : 11000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute airway : zdc |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 8000 flight time type : 6000 |
| ASRS Report | 322560 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
Narrative:
Near lhy we were cleared to cross henby intersection at 10000 ft. Descending through 11000 ft. ZDC called to ask why we descended below 12000 ft. We believe our clearance was to 10000 ft. ZDC claims 12000 ft.
Original NASA ASRS Text
Title: ATC SAID ACFT WAS CLRED TO 12000 FT. FLC SAID IT WAS 10000 FT. WHEN CTLR SAW ACFT APCHING 11000 FT, HE QUESTIONED WHAT THEY WERE DOING.
Narrative: NEAR LHY WE WERE CLRED TO CROSS HENBY INTXN AT 10000 FT. DSNDING THROUGH 11000 FT. ZDC CALLED TO ASK WHY WE DSNDED BELOW 12000 FT. WE BELIEVE OUR CLRNC WAS TO 10000 FT. ZDC CLAIMS 12000 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.