What was found
ON CLIMB OUT PRESSURIZATION TRANSFER LOCKOUT & STANDBY ON LIGHTS ILLUMINATED. QRH PROCEDURES ACCOMPLISHED, LIGHTS RE-ILLUMINATED, PRESSURIZATION NORMAL. PLACED ON MEL 21-24 SIT 1 CAT C DMI 10590, PLACARD INSTALLED. PERFORMED BITE CHECK ON BOTH PRIMARY & STBY CONTROLLERS BOTH CHECKED GOOD THIS CLEARS MEL 21-24 SIT 1 CAT C DMI 10590. NO M PROCEDURES TO REVERSE, PLACARD REMOVED IAW AMM 21-32-00. 8/5/14 HAD 1 PREVIOUS WRITE UP ON 7/23. OPERATIONS CHECKED GOOD. ON 8/1 DUE TO REPEAT WRITE UP R & R RATE SELECTOR. PARTS REPLACED 392714-1-1, 130476-5 & 130476-7.