As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRSPEED SETTING BUG WAS STUCK @ UP. CAPTAIN SIDE NORMAL (AIRSPEED VNAV COMMAND ON SPEED TAPE). F/D DISAPPEARED F/O SIDE. ALL RESOLVED TO NORMAL @ 10,000 FT. XFER FROM L/P 60739024. GROUNDED - YES. DFCS BITE FOR B CHANNEL SHOWS MSG 22-11537 AND 22-11559. LRU REPLACEMENT TEST FOR FCC B GROUP TEST 20.00 PASS REF 22-11 TASK 801.11799. REMOVED AND REPLACED FCC B PER AMM 22-11-33. INSTALLATION TEST GOOD, ALL TESTS PASS. HARDWARE AND FCC OPS PN'S CORRECT.