What was found
AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS WHEN PERFORMING EPSU TEST BAT / EPSU 12WL FAULT. REPLACED EPSU ASSY AT 10WL & OPS TESTED GOOD. NO FAULTS IAW AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS WHEN PERFORMING EPSU TEST BAT / EPSU 12WL FAULT. REPLACED EPSU ASSY AT 10WL & OPS TESTED GOOD. NO FAULTS IAW AMM 33-51-38.