What was found
AIRCRAFT WAS GROUNDED: DURING POST SLIDE INSTALL TEST FWD LEFT EPSU AND MID CABIN LEFT EPSU FAIL OPS TEST. MAINTENANCE REPLACED MID LEFT EPSU 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: DURING POST SLIDE INSTALL TEST FWD LEFT EPSU AND MID CABIN LEFT EPSU FAIL OPS TEST. MAINTENANCE REPLACED MID LEFT EPSU IAW AMM 33-51-38.