As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN ATTEMPTING TO START ENG, THERE WAS NOT ENOUGH PSI FROM APU. PSI WAS AT 15 AND EVEN IF YOU TURNED ON PACK PSI WOULD DROP TO 8 PSI OR LESS.(<P>APU WAS TRANSFERRED TO MDDR 126566 IAW MEL 49-11-01A, CAT C, DUE DATE 12APR20, DISPATCH ACL 0532Z.</P><P>LOG PAGE 1126420: REMOVED AND REPLACED ADP MODULATING VALVE IAW B767 AMM 29-11-04. OPS CHECK GOOD AT THIS TIME. THIS CLEARS DMI #126566 AT THIS TIME. MCC NOTIFIED, PLACARD REMOVED.</P>)