As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START AND DURING FLAP EXTENSION MACH TRIM FAIL ILLUMINATED. GROUNDED - YES. WHILE PREPARING FOR MEL 22-5C NOTED MACH TRIM DC C/B CHANNEL A OPEN PERFORMED GVI AND RESET C/B. PER AMM 20-60-01. OPS CHECKNORMAL PER AMM 22-11-00 OPS CHECK NORMAL NO HISTORY LAST 30 DAYS ALL C/B RESET SEAMC JEREMY NOTIFIED.NON ASA 3051221.