What was found
AFTER TAKEOFF RT PACK OVERHEAT AT FL250 SHUT DOWN PACK PER QRH RT PACK TEMP WAS 98 MAX. GROUNDED - YES. REVERSED CONFIG CHANGE BY UNCAPPING 1 EA CONNECTOR AND REINSTALLING, AND RETURNING PACK AIRFLOW SHUTOFF VALVE TO OPEN POSITION REF B737-900 MM 21-00-00-040-804. ACCOMPLISHED CONTINUITY CHECKS OF INLET AND EXHAUST SRADA REF B737-900 WDM 21-51-24 PG5. ALL CHECKS WERE GOOD. ACCOMPLISHED PZTC BITE REF B737-900 MM 21-61-00-700-806-002. PACK CONTROLLER NR 2 SHOWS PREVIOUS FAULT FOR INLET SRADA. FAULT CLEARED UPON VERIFICATION. AS A PRECAUTION, R & R THE INLET SRADA REF B737-900 MM 21-51-21-400-801. 5 C/B'S OPENED & CLOSED. OPS CK GOOD PER THE SAME. THIS CLEARS MEL 21-1G.