What was found
LT PACK INOP, UNABLE TO BRING DUCT TEMP BELOW 40 DEGREES C, DURING T-OFF & CLIMB, STRONG BURNED OIL SPELL ACCOMPANIED BY TOO WARM TEMP. RETURNED TO DEPARTURE. R & R LT AIR CYCLE MACHINE CLAMP IAW MM 21-11-51 AND PERFORMED OPS CHECK AND FOUND WORKING PROPERLY AT THIS TIME. ON 3/4/10 PERFORMED ENGINES GROUND RUN-UP IAW JIC 72-00-00 AT VARIOUS POWER SETTINGS IAW 72-00-10 FIG 108 FAULT ISOLATION PG SYS NORMAL. ON 3/4/10 R & R NP SENSOR SEAL AND CLEANED BRG 6 AND 7 BREATH TUBE AND PERFORMED OPS CHECK AND FOUND WORKING PROPERLY AT THIS TIME IAW MM 72-01-60, TAC 36108 AT THIS TIME CLEARED THIS ITEM OR ITEM 1 IAW MM 72-01-60