What was found
ON DESCENT, RECIEVED LT & RT PACK OFF LIGHT. ATTEMPT TO RESET FAILED. DESCENDED TO 9000 FT, DEBRIEF FROM PILOTS . DURING OCCURANCE, RT COND TEMP CONT & R SEC HX SENSOR DISPLAYED AT TOC FL320, ACCOMP SYS TEST ON RT CTC.. TEST PASSED. RT RAM INLET ACTUATOR FAILED TO OPEN & CLOSE. R & R BOTH R1 & R2 SECONDARY HX SENSOR IAW AMM 21-51-44. CTC BITE TEST STILL REQUIRED ACCOMPLISHED CTC BITE TEST FOR BOTH R1 & R2 SECONDARY HX SENSOR BITE TEST PASSED IAW AMM 21-61-20. R & R RT RAM AIR INLET DOOR ACTUATOR IAW AMM 21-53-03. OPS CHECKED GOOD. REF 7826336 LH ENG BLEED OFF AT TOP OF DECSENT WITH CORRELATED MESSAGES FOR LT BLEED PRSOV & LT HPSOV. R & R LT ENG HPC IAW AMM 36-11-08, & R & R LT ENG HPSOV IAW 36-11-07. FOUND B-NUT ON LINE OFF OF HPSOV BAD, REPLACED LINE & UNION. OPS & LEAK CHKD GOOD, PERFORMED HIGH POWER BLEED SHIFT & AIR SUPPLY DIST SYS TEST IAW AMM 71-00-00 TASK 36-11-00-715-029-001. OPS CHKD GOOD,