As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT LOW \APU BLEED PRESSURE 21 PSI IS REQUIRED. OCCURED ON THE SECOND ENGINE START.(<P>REMOVED AND INSPECTED CLEANED SURGE VALVE FILTER ELEMENT IAW AMM 49-53-06, 26PSI. NO PACKS MINIMUM ENGINE START 25 PSI OK FOR SERVICE.<BR /></P>)