What was found
ETOPS SIGNIFICANT SYS - MID CABIN TRIM AIR INOP LIGHT AND EICAS MSG ILLUMINATED WHILE ON THE GROUND. INTERROGATED ZONE TEMP CTL FOUND MID CABIN VALVE FAULT. REPLACED TRIM AIR VALVE IAW AMM 21-61-07 AND OPS LEAKED CK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ETOPS SIGNIFICANT SYS - MID CABIN TRIM AIR INOP LIGHT AND EICAS MSG ILLUMINATED WHILE ON THE GROUND. INTERROGATED ZONE TEMP CTL FOUND MID CABIN VALVE FAULT. REPLACED TRIM AIR VALVE IAW AMM 21-61-07 AND OPS LEAKED CK GOOD.