Solution : https://service.sap.com/sap/support/notes/120315 (SAP Service marketplace login required)
Key words : 
displays production resources/tools correctly, additional key words cu50, production resource/tool, field plfhd-sfhnr, attached advance corrections, transaction cu50, object key, object list, prt category, program error
Related Notes : 
       
| 119634 | CU50:List of results tsk lst/work centr PLPOD-ARBPL | 
| 86482 | 3.1I CU50 routing simulation - PRT |