As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO REPORTS OF APU STARTING DIFFFICULTIES AND CREW REPORTS THAT THE ROTARY START SWITCH BINDS, PLEASE REPLACE THE APU START SWITCH WITH REFERENCE TO BOEING STANDARD PRACTICES MANUAL FOR RMVL & INSTALLATION OF ELECTRICAL SWITCHES & SAFETY PRACTICES. IPC 49-42-51-001A REFERS FOR PARTS (PCN 566-0253). PLEASE CHECK ALL PART NUMBERS WITH ONLINE IPC. ROBBED START SWITCH FROM AC 2894. RAN APU, OPS CHECK OKAY.