What was found
CLIMBING OUT OF FCA CO-PILOTS STAB TRIM SWITCH RAN AWAY TO A VALUE OF 1.0 NOSE DOWN WITH NO RESPONSE WHEN TRIMMING TO THE NOSE UP POSITION. REPLACED CO-PILOTS STAB TRIM SWITCH P/N 309-4334. OPERATIONAL CHECK GOOD IAW 27-41-05.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CLIMBING OUT OF FCA CO-PILOTS STAB TRIM SWITCH RAN AWAY TO A VALUE OF 1.0 NOSE DOWN WITH NO RESPONSE WHEN TRIMMING TO THE NOSE UP POSITION. REPLACED CO-PILOTS STAB TRIM SWITCH P/N 309-4334. OPERATIONAL CHECK GOOD IAW 27-41-05.