What was found
RT ENG ON TAKEOFF LOST .03-.09% AT ABOUT 70 KNOTS. NOTICED RT THROTTLE MOVE TO FULL FORWARD. POWER CAME BACK ABOUT TIME PACKS RESTORED. S/D* ACPL HIGH PWR ACCEL-DECEL & AUTO THROTTLE TESTS, NO DISCREPANCIES FOUND. RT ELECTRONIC ENG CONTROL SET MAX EPR LIMIT TOO LOW DURING PACKS-OFF T/O. EEC SOFTWARE COMPUTATION ERROR CAN OCCUR WHEN 30-SECOND AIR -CONDITIONING PACK BLEEDDOWN PERIOD ENDS W/IN 200 MILLISECONDS OF MOMENT EEC SENSES ITS 65 KNOT RATING LOCKUP AIRSPEED FOR T/O. RECOVERY IS AUTOMATIC AT START OF CLIMB. FLT MANUAL PROC FOR PACKS-OFF T/O WAS REVISED TO INITIATE PACK SWITCH-OFF AT LEAST 30 SECONDS PRIOR TO START OF T/O ROLL.