Eaton 9390 UPS (Bypass Exam) tests knowledge on the following topics: UPS Lab Safety, UPS System Overview, UPS/UPM Operations, UPS Component Identification, UPS Voltage Sensing, XCP Service Software Tool, Maintenance Bypass Panel (MBP), UPS/UPM Schematics, UPS Preventive Maintenance, JO 6980.29 Maintenance Handbook (MTHB), Standards and Tolerances, UPS Performance Check Procedures, UPS Other Maintenance Tasks Procedures, UPS Special Maintenance Procedures, UPS Battery Maintenance, UPS Battery Software, UPS Battery Hardware, 9390 Removal and Replacement, 9390 Troubleshooting, and JO 6980.29 Appendix A. Certification Requirements. Appropriate FAA technical documentation, maintenance handbooks (MTHBs), UPS schematics and commercial off the shelf (COTS) documentation may be used during this bypass examination.
