As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING T/C 78273000 FOUND SHORT TIME FAULT 75-30542 ON ENGINE 2. GROUNDED - YES. REPLACED #2 ENG LEFT VBV ACTUATOR REF B737-800 AMM 75-32-02-400-801-F00 STEPS 3A-3H(7). PERFORMED IDLE LEAK CHECK AND ACTUATORS TEST. CHECK/TEST OK. REF AMM 75-32-02-400-801-F00 STEP 3I. B737-800 FIM 75-32 TASK 803 STEP H (REPAIR CONFIRMATION.)