As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) (DISCREPANCY DISCOVERED DURING AIRCRAFT HEAVY MX VISIT) NRC 7000-0017: EPSU BITE TEST FAILED. FAULT CODE: 256241 ESCAPE SLIDE LT SW/EPSU(11WL)EMER L. / AFTER L/H OVERWING ESCAPE SLIDE REPLACEMENT ON T/C 256242-03-1-001 (4002606-2200-0003), EPSU BITE TEST PERFORMED SERVICEABLE IAW AMM 33-51-00-710-001-A."