What was found
AIRCRAFT IN BASE MX. EMER POWER SUPPLY UNIT 12WL, BITE TEST SHOWED UNIT FAULT. REPLACED EMER POWER SUPPLY UNIT 12WL IAW AMM 33-51-38-400-001-A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MX. EMER POWER SUPPLY UNIT 12WL, BITE TEST SHOWED UNIT FAULT. REPLACED EMER POWER SUPPLY UNIT 12WL IAW AMM 33-51-38-400-001-A.