As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND DFDR BEACON BATTERY NEXT DUE DATE WITHIN 90 DAYS.(<P>1. REPLACED DFDR UNDERWATER LOCATOR BEACON (ULB) IAW AMM 31-31-09-002-001 & AMM 31-31-09-402-015 REV 113. 2. PERFORMED ULB OPERATIONAL TEST IAW AMM 31-31-09-402-020 REV 113. THE TEST RESULT WAS SATISFACTORY.</P>)