As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M2626 EMERGENCY POWER SUPPLY PUSH TO TEST BUTTON STICKS. JUST ABOVE SEAT 30ABC MOUNTED ON CEILING PANEL REMOVED AND REPLACED M2626 EMERGENCY POWER SUPPLY ASSY WITH SERVICABLE UNIT, RO 5021132. OPS CHECK GOOD REF AMM 33-51-01-960-806. OPS CHECK GOOD.