Narrative:

During climb out on departure from lgw to an issued and accepted assigned altitude of FL250, the london center controller requested a left turn from approximately 010 heading to 310 degrees. I was hand flying the aircraft in this climbing left turn when the same controller issued to us a command to expedite the left turn to 280 degrees and expedite our climb to FL250. I was uncomfortable with the situation that made necessary expedited turning and climbing and verbalized my feeling to the captain. He agreed but allowed that the controller was using the vectors to save us some unnecessary track mi. During these short comments, I overheard the controller addressing another aircraft and saying something about a widebody transport with a comment referencing 4 mi. No mention was made that the widebody transport in question was our flight, just as no statement was made of any assigned altitude discrepancy. Soon after, we were issued a new frequency for ATC and a radio handoff was made. Our flight continued in a normal fashion to new york and the first knowledge to any crew member of any problems was when we were met at our arrival gate by our base chief pilot. This is a complete statement of my knowledge about this incident but, in new york we were told that it was being claimed that we had climbed through an assigned altitude of FL230 and were within 4 NM of traffic at the same altitude. Supplemental information from acn 194527. There exists the possibility that the proper altitude was selected and when the altitude select knob was pulled aft, the selected altitude was altered.

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Original NASA ASRS Text

Title: ACR WDB ALTDEV OVERSHOT DURING CLB OUT FROM LGW.

Narrative: DURING CLBOUT ON DEP FROM LGW TO AN ISSUED AND ACCEPTED ASSIGNED ALT OF FL250, THE LONDON CENTER CTLR REQUESTED A L TURN FROM APPROX 010 HDG TO 310 DEGS. I WAS HAND FLYING THE ACFT IN THIS CLBING L TURN WHEN THE SAME CTLR ISSUED TO US A COMMAND TO EXPEDITE THE L TURN TO 280 DEGS AND EXPEDITE OUR CLB TO FL250. I WAS UNCOMFORTABLE WITH THE SITUATION THAT MADE NECESSARY EXPEDITED TURNING AND CLBING AND VERBALIZED MY FEELING TO THE CAPT. HE AGREED BUT ALLOWED THAT THE CTLR WAS USING THE VECTORS TO SAVE US SOME UNNECESSARY TRACK MI. DURING THESE SHORT COMMENTS, I OVERHEARD THE CTLR ADDRESSING ANOTHER ACFT AND SAYING SOMETHING ABOUT A WDB WITH A COMMENT REFERENCING 4 MI. NO MENTION WAS MADE THAT THE WDB IN QUESTION WAS OUR FLT, JUST AS NO STATEMENT WAS MADE OF ANY ASSIGNED ALT DISCREPANCY. SOON AFTER, WE WERE ISSUED A NEW FREQ FOR ATC AND A RADIO HDOF WAS MADE. OUR FLT CONTINUED IN A NORMAL FASHION TO NEW YORK AND THE FIRST KNOWLEDGE TO ANY CREW MEMBER OF ANY PROBLEMS WAS WHEN WE WERE MET AT OUR ARR GATE BY OUR BASE CHIEF PLT. THIS IS A COMPLETE STATEMENT OF MY KNOWLEDGE ABOUT THIS INCIDENT BUT, IN NEW YORK WE WERE TOLD THAT IT WAS BEING CLAIMED THAT WE HAD CLBED THROUGH AN ASSIGNED ALT OF FL230 AND WERE WITHIN 4 NM OF TFC AT THE SAME ALT. SUPPLEMENTAL INFO FROM ACN 194527. THERE EXISTS THE POSSIBILITY THAT THE PROPER ALT WAS SELECTED AND WHEN THE ALT SELECT KNOB WAS PULLED AFT, THE SELECTED ALT WAS ALTERED.

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.