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A B737-200 crew climbs above what ATC says was their assigned altitude of FL350. Flight had been assigned FL370 by same controller.
| Attributes | |
| ACN | 419380 |
| Time | |
| Date | 199811 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : amg |
| State Reference | GA |
| Altitude | msl bound lower : 33000 msl bound upper : 35500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : private pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 180 flight time total : 4000 flight time type : 1000 |
| ASRS Report | 419380 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 3900 flight time type : 500 |
| ASRS Report | 419573 |
| Events | |
| Anomaly | non adherence : published procedure other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : anomaly accepted other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation other |
Narrative:
While first officer was in lavatory, ZTL said to expect an altitude change to FL350 (we were at FL330). After the first officer re- entered, we were given a frequency change. The next controller said to climb to FL370. We read back FL370 and set it in the MCP. I remarked to the first officer that it was odd we were given FL370 after being told to expect FL350. He agreed. Passing FL355, the controller stated that we had been cleared to FL350 and we initiated a descent. After landing, I called ZTL, and they said that we had both received and read back a clearance to FL370. We could have queried the controller when the clearance given to us was not the same as our expectations.
Original NASA ASRS Text
Title: A B737-200 CREW CLBS ABOVE WHAT ATC SAYS WAS THEIR ASSIGNED ALT OF FL350. FLT HAD BEEN ASSIGNED FL370 BY SAME CTLR.
Narrative: WHILE FO WAS IN LAVATORY, ZTL SAID TO EXPECT AN ALT CHANGE TO FL350 (WE WERE AT FL330). AFTER THE FO RE- ENTERED, WE WERE GIVEN A FREQ CHANGE. THE NEXT CTLR SAID TO CLB TO FL370. WE READ BACK FL370 AND SET IT IN THE MCP. I REMARKED TO THE FO THAT IT WAS ODD WE WERE GIVEN FL370 AFTER BEING TOLD TO EXPECT FL350. HE AGREED. PASSING FL355, THE CTLR STATED THAT WE HAD BEEN CLRED TO FL350 AND WE INITIATED A DSCNT. AFTER LNDG, I CALLED ZTL, AND THEY SAID THAT WE HAD BOTH RECEIVED AND READ BACK A CLRNC TO FL370. WE COULD HAVE QUERIED THE CTLR WHEN THE CLRNC GIVEN TO US WAS NOT THE SAME AS OUR EXPECTATIONS.
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.