What was found
(CAN) DURING TROUBLESHOOTING FOR GROUND POWER SNAG, NOTICED THAT 5A CURRRENT LIMITER FOR HE GROUND POWER ENERGIZATION CIRCUIT WAS BLOWN. IT SHOULD BE NOTED THAT P109A20 WAS NOT PINNED TO X AT P309, AS WAS INDICATED BY THE WIRE DIAGRAMS FOR S/N 31-102. ACFT WIRED AS PER EFFECTIVITY 31-147 AND SUBSEQUENT, WITH P109A20 AT PIN J.