As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PUNGENT ODOR IN COCKPIT DURING CLIMBOUT AND WENT AWAY. RAN LT & RT PACKS ISOLATED WITH APU AS BLEED SOURCE AND HAD NO ODOR PRESENT. RAN RT & LT PACKS WITH NR 1 & 2 ENGINE BLEEDS AND ISOLATED. ALSO RAN EACH PACK WITH JUST ONE ENGINE AS BLEED SOURCE, NO ODOR PRESENT. BOTH ENGINES AT CLIMB SETTING EPR 1.3, PAST BLEED SHIFT. FOUND CAPTAIN'S SIDE DUCT EXIT SCREENS FULL OF LINT.