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Flight crew of a B767-300ER were advised that they had been given a lower leveloff altitude than that at which they were. However, after descending several hundred ft toward the new altitude, they were given the altitude at which they had just left.
| Attributes | |
| ACN | 421448 |
| Time | |
| Date | 199811 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mow |
| State Reference | FO |
| Altitude | msl bound lower : 33550 msl bound upper : 39650 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 130 flight time total : 18000 flight time type : 3000 |
| ASRS Report | 421448 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
About 180 NM from moscow while at 11100 meters, the controller said (I thought) 'maintain 10100 meters.' I began a slow descent, after descending about 600-700 ft. The controller asked our altitude. I replied 35900 ft and he then said to maintain 11200. We leveled off and returned to 11200. When I read back 10100 meters the controller did not say anything, so I thought it was the appropriate altitude, and we were at top of descent. We did return to 11100 meters and no further comment was made by the controller.
Original NASA ASRS Text
Title: FLC OF A B767-300ER WERE ADVISED THAT THEY HAD BEEN GIVEN A LOWER LEVELOFF ALT THAN THAT AT WHICH THEY WERE. HOWEVER, AFTER DSNDING SEVERAL HUNDRED FT TOWARD THE NEW ALT, THEY WERE GIVEN THE ALT AT WHICH THEY HAD JUST LEFT.
Narrative: ABOUT 180 NM FROM MOSCOW WHILE AT 11100 METERS, THE CTLR SAID (I THOUGHT) 'MAINTAIN 10100 METERS.' I BEGAN A SLOW DSCNT, AFTER DSNDING ABOUT 600-700 FT. THE CTLR ASKED OUR ALT. I REPLIED 35900 FT AND HE THEN SAID TO MAINTAIN 11200. WE LEVELED OFF AND RETURNED TO 11200. WHEN I READ BACK 10100 METERS THE CTLR DID NOT SAY ANYTHING, SO I THOUGHT IT WAS THE APPROPRIATE ALT, AND WE WERE AT TOP OF DSCNT. WE DID RETURN TO 11100 METERS AND NO FURTHER COMMENT WAS MADE BY THE CTLR.
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.