What was found
STAB TRIM CH NR 1 & 2 AND MACH TRIM ALL DISENGAGED SHORTLY AFTER TAKE OFF, RETURNED FOR LANDING. INSTALLED NEW STAB TRIM DISCONNECT SWITCH ON FIRST OFFICER'S SIDE. PN 996-0013. OPS CHECK GOOD, OK FOR CAT II OPERATIONS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM CH NR 1 & 2 AND MACH TRIM ALL DISENGAGED SHORTLY AFTER TAKE OFF, RETURNED FOR LANDING. INSTALLED NEW STAB TRIM DISCONNECT SWITCH ON FIRST OFFICER'S SIDE. PN 996-0013. OPS CHECK GOOD, OK FOR CAT II OPERATIONS.