Narrative:

Air carrier X assigned heading with autoplt on. PF overshot heading. PNF caught error and requested heading from center. Center said present heading ok. Observed opposite direction aircraft Y on TCASII. Eventually TCASII RA. (We had visual on traffic prior RA.) no evasive action required.

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Original NASA ASRS Text

Title: ACR X HDG DEV HAD LTSS FROM ACFT Y. SYS ERROR.

Narrative: ACR X ASSIGNED HDG WITH AUTOPLT ON. PF OVERSHOT HDG. PNF CAUGHT ERROR AND REQUESTED HDG FROM CTR. CTR SAID PRESENT HDG OK. OBSERVED OPPOSITE DIRECTION ACFT Y ON TCASII. EVENTUALLY TCASII RA. (WE HAD VISUAL ON TFC PRIOR RA.) NO EVASIVE ACTION REQUIRED.

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.