As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING TASK CARD NG-36-WC-00001 FOUND THE #2 ENGINE PCV BAD. GROUNDED - YES. REMOVED AND REPLACED THE #2 ENG PRECOOLER CONTROL VALVE PER B737-900 AMM 36-12-02/401. LK CK GOOD REF AMM 36-12-02-400-801. ETOPS GROUND VERIFICATION SUCCESSFUL.