As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PSEU FAIL FAULT CODE INDICATES AN INTERNAL FAILURE WITHIN THE PSEU BOX BUT THE OEM COULD NOT LOCATE CAUSES OF THIS FAULT CODE. THIS EA WILL CAP AND STOW THE UNUSED PINS AT THE RACK, THUS COMPLETELY ELIMINATING THE WIRE AS AN EMT SOURCE. COMPLIED WITH EA NR 8-3260-81418, MD10 LANDING GEAR - LANDING GEAR POSITION INDICATION SYSTEM, ALTERATION REFERENCE NO - WRI - 32602959.