What was found
CAPTAIN REPORTED BURNING SMELL IN COCKPIT WITH APU ON AND BLEEDS OFF APU. MAINTENANCE RAN ENGINE PACKS AND APU FOR 2 HOURS, COULD NOT DUPLICATE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAIN REPORTED BURNING SMELL IN COCKPIT WITH APU ON AND BLEEDS OFF APU. MAINTENANCE RAN ENGINE PACKS AND APU FOR 2 HOURS, COULD NOT DUPLICATE.