As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FMC P/RST LIGHT WILL NOT AUTOMATICALLY EXTINGUISH AFTER A TEST. GROUNDED - YES. REMOVED AND REPLACED #1 FMC. ACCOMPLISHED ALL LLM TESTS AND LRU REPLACEMENT TEST REF B737-900 AMM 34-61-02-000/400-801. FMC P/RST LIGHTS EXTINGUISH AFTER POST. GROUND VERIFICATION PASS.