What was found
RUBBER ODOR COMING FROM THE APU WITH THE BLEEDS SELECTED ON. THE ODOR WENT AWAY WITH THE ENGINES ON. NO FAULTS FOUND IN CDS SYSTEM. RAN APU WITH BLEEDS ON FOR 20 MINUTES WITH NO ODOR DETECTED. COULD NOT DUPLICATE. RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RUBBER ODOR COMING FROM THE APU WITH THE BLEEDS SELECTED ON. THE ODOR WENT AWAY WITH THE ENGINES ON. NO FAULTS FOUND IN CDS SYSTEM. RAN APU WITH BLEEDS ON FOR 20 MINUTES WITH NO ODOR DETECTED. COULD NOT DUPLICATE. RETURNED TO SERVICE.