As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(MULT 33-3-0004) EMERGENCY LT BATTERY PACK M1672 LOW VOLTAGE TRANSCRIBED FROM HAECO GSO NR 9280050 REMOVED AND REPLACED M1672 POWER SUPPLY I.A.W B737-800 AMM 33-51-06-960-806. OPS TEST CHECKS GOOD I.A.W B737-800 AMM 33-51-06-960-805;STEP 5.E.(3).