As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - AFTER LANDING UNABLE TO GET PNUEMATIC AIR FROM APU. PROVIDED GROUND AIR & GROUND POWER. POWERED DOWN ACFT. SHUTDOWN APU & RESTARTED APU. TURNED ON ELECTRICAL & PNUEMATIC SYSTEMS IAW AMM 49-11-00-802-002. STANDARD PROCEDURES ALL APU ELECTRICAL & PNUEMATIC FUNCTIONS CKD OK.