As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO AUDIO TONE ON CVR TEST. ***CVR ETA TO SFO, 11-20 0800 LOCAL.*** GROUNDED - YES. REF A321 TSM 23-71-00-810-801-A. ACCOMPLISHED OPS TEST OF CVR, NO AUDIO IN CAPT AND F/O LOUD SPEAKER. PERFORMED ALTERNATIVE CVR TEST THROUGHOUT PANEL 50VU HEADSET JACK 22RK. OPS TEST GOOD.