What was found
AIRCRAFT WOULD NOT PRESSURIZE IN ANY MODE - AUTO, STANDBY OR MANUAL AC OR DC. TRANSFERRED TO MEL 5718 IAW MEL 21-16-2D. PLACARDS INSTALLED CAT-C.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WOULD NOT PRESSURIZE IN ANY MODE - AUTO, STANDBY OR MANUAL AC OR DC. TRANSFERRED TO MEL 5718 IAW MEL 21-16-2D. PLACARDS INSTALLED CAT-C.