As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1672 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY M1672 PN# D717-02-001 PERFORMED INSTALLATION TEST . TEST PASSED. NO DEFECT NOTED IAW B737-900 AMM 33-51-06-960-806.