What was found
FUME EVENT ON CLIMBOUT AND DESCENT AT 12K ALTITUDE BOTH TIMES WITH ENG A/I USAGE. AFT LAV, CAPT SIDE, FIRE ALARM ACTIVATED. WENT OUT AFTER 5 MINS. NO SMOKE OF FIEW REPORTED. FOUND APU AIR INLET CONTAMINATED WITH HYD FLUID. LEFT THRUST REVERSER CNTL VALVE UPPER LINES HAS PIN HOLE AT BEND. FABRICATED NEW HYD PER AMM 20-12. C/W APU CLEANG PER W/C 4900-1185. R-R LT HYD T-REV DEPLOY LINE PER AMM 29-21. NEW LT T-REV DEPLOY LINE LEAKS AT B-NUT ON VALVE. REQUIRES NEW LINE. REMOVED LR T-REV DEPLOY LINE PER AMM 29-21. REPLACED LT T-REV DEPLOY LINE REQUIRES LEAK CHECK. REPLACED LINE IAW AMM 29-21. LEFT THR REV DEPLOY LINE HYD LINE LEAK CKS GOOD. NR 2 ENG CHG DUE TO OIL CONTAMINATION ON LOG 5037935. FUME EVENT WORKED ON NO GO ODI LOG 0800338. (LP5037932)