What was found
AFTER ENGINE START LEFT BLEED OFF EICAS MSG WITH BLEED SW ON LT ENGINE DUCT PRESSURE ZERO (REPEATED ITEM). DUE HISTORY - PERFORMED TROUBLE SHOOTING AS FOLLOWS: R&R BLEED AIR CONTROL CARD PN 285T1115-15 SN OFF D01731 SN ON D01066 -AMM36-11-12. R&R HPSOV PN 802170-12 SN OFF 9905070 SN ON 900583 AMM 36-11-07. ALSO REPLACED CONNECTOR D11116 (PRV CONTROLLER CONNECTOR) DUE BACKSHELL STRIPPED. R&R PRSOV PN 799801-4 SN OFF 9910044 SN ON 2009041355 AMM 36-11-09. PERFORMED ENG RUN UP PER AMM 71-00-00, CHECK OK.