As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENG VALVE CLOSED LIGHT NOT OPERATING CORRECTLY. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE HMU HPSOV SWITCH PER B737-800 AMM 73-21-09-000-801-F00/AMM 73-21-09-400-801-F00. PERFORMED POWERPLANT TEST #12 (ACTUATORS TEST) PER AMM 71-00-00-700-807-F00 AND POWERPLANT TEST #13 (ENGINE RUN - EEC BITE TEST) PER AMM 71-00-00-808-F00 - ALL TESTS PASS. ORIG SUB DATE: 12/5/2022