A HDG TRACK DEV OCCURS DURING A B-767 SID DEP PROC OFF RWY 8L AT CDG; FO.

Narrative

SHORTLY AFTER TKOF FROM RWY 8L AT CDG I INADVERTENTLY TURNED N OF THE RWY CTRLINE AND WAS ADVISED BY CDG TWR TO MAKE A R TURN TO 160 DEGS TO RETURN TO THE L'AIGLE 9 RNAV DEP SID TRACK. THIS HAPPENED DESPITE MY PRE-TKOF BRIEFING AND SETTING THE VOR AND ADF FOR THE SID. WHEN WE WERE CLRED ONTO THE RWY THE STANDARD TKOF DATA DROPPED OUT AND REVERTED TO MAX. WE MADE SEVERAL ATTEMPTS TO REINSERT STANDARD/ASSUMED TEMP; BUT WERE UNABLE AND ELECTED TO MAKE THE TKOF USING MAX. AT THIS TIME WE WERE CLRED FOR TKOF. SINCE THE AIRPLANE SYMBOL WAS NOT TOUCHING THE RWY AND WE DID NOT WANT TO DELAY TKOF -- I ELECTED TO FLY THE INITIAL PART OF THE SID ON THE PGS 087 DEG RADIAL USING RAW DATA. BECAUSE OF THE DISTR OF THE TKOF SETTINGS I FAILED TO SELECT THE VOR MODE WHICH I HAD SET UP AND INSTEAD LEFT THE LNAV DISPLAYED. DURING TKOF; THE EGT WAS GRADUALLY RISING AND WAS APCHING THE CAUTIONARY RANGE AND CONTINUED TO CLB AFTER LIFT-OFF. AFTER GEAR UP AND AT 400 FT AFL; I CALLED FOR HDG SELECT; BUT INSTEAD OF INTERCEPTING THE RADIAL; I STARTED A SLIGHT L TURN TO THE LNAV COURSE WHICH WAS OFF-SET TO THE N OF THE RWY. AT THAT TIME THE TWR TOLD US TO MAKE THE R TURN BACK TO COURSE. MY ATTN TO THE TKOF MODE PROB AND THE RISING EGT CAUSED ME TO FAIL TO FOLLOW THE RAW DATA AS I HAD JUST BRIEFED PRIOR TO TKOF. I DO NOT BELIEVE THIS DEV CAUSED ANY TFC CONFLICTS AND THE EGT REMAINED BELOW THE CAUTION ZONE DURING THE CLBOUT. THE REST OF THE DEP WAS FLOWN ON LNAV AFTER THE ACFT WAS CLEANED UP. I REALIZED THAT MY ATTN TO THE RISING EGT'S DISTR ME FROM 'FLYING THE ACFT' AND FOLLOWING MY BRIEFED INTENTIONS. SUPPLEMENTAL INFO FROM ACN 590701: THE PROB WITH THE RISING EGT AND THE LAST MIN CHANGES CREATED THE DISTR FROM BEING IN A SITUATIONAL AWARENESS CONDITION.