What was found
STAB CH1 INOP AND MACH TRIM MESSAGES IN CLIMB (FL240). CLEANED BOTH TRIM SWITCHES AND REPLACED HSTCU IAW CRJ MM 27-41-01. OPERATIONAL CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB CH1 INOP AND MACH TRIM MESSAGES IN CLIMB (FL240). CLEANED BOTH TRIM SWITCHES AND REPLACED HSTCU IAW CRJ MM 27-41-01. OPERATIONAL CHECK GOOD.