What was found
EMERGENCY DECLARED, PACK 2 OVLD, SYS STEADILY CLIMBING AFTER LEVEL AT FL250 RAPID DECENT TO FL 100 STOPPED THE PRESS FROM CLIMBING, CABIN ALT CAME BACK TO NORMAL PRIOR TO LANDING. PACK 1 MEL'D ERRATIC PRESS SYS AT CRUISE FLIGHT. TRANSFERRED TO NRWC 634-CMH-01728. REFER WORK COMPLIED WITH NRWC 634-CMH-01728. PACK 2 OPERATIONS CHECK GOOD IAW AMM 21-51-00. R & R DIGITAL CONTROLLER IAW AMM 21-31-01. CLEANED OUTFLOW VLVS IAW AMM 21-31-03. REFER AML LG PG 3634307 ITEM 3 FOR PRESSURIZATION AUTO MODE DEFERRAL.