What was found
ETOPS SIGNIFICANT SYS - BTB - LT PACK OFF LIGHT AND PACK INOP EICAS MESSAGE DO NOT COME ON WHEN LT PACK IS OFF. CHECKED WIRING IAW WDM 21-51-11 REPLACED LT PACK FLOW CONTROL VALVE IAW AMM 21-51-61. OPS AND LEAK CK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ETOPS SIGNIFICANT SYS - BTB - LT PACK OFF LIGHT AND PACK INOP EICAS MESSAGE DO NOT COME ON WHEN LT PACK IS OFF. CHECKED WIRING IAW WDM 21-51-11 REPLACED LT PACK FLOW CONTROL VALVE IAW AMM 21-51-61. OPS AND LEAK CK OK.