As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 2298173) REMOVE POWER SUPPLY P/N: D717-02-001 FROM A/C 3705 TO BE INSTALLED ON A/C 3701 TO ATTEND NRC 00878 ,THEN INSTALL SERVICEABLE PART ON A/C 3705. EMERGENCY POWER SUPPLY WAS REPLACED PER B-737/800 AMM 33-51, OPS SATISFACTORY TEST.