What was found
(ENROUTE FROM MWCR-KHOU, EMER INTO HOU W/OUT INCIDENT) DISCREPANCY: GEN 1 OFF. TRIED RESETTING IN FLIGHT & ON THE GROUND. SHOWS HZ, BUT NO KVA & VOLTS. SHUTS DOWN SHORTLY AFTER. MX C/A: SWAPPED #1 & #2 GCU'S, CHECK FAILED. RETURNED TO ORIGINAL POSITIONS. CHECKED OUTPUT AT PLUG 1P10XA PER SMARTFIX, W/IN LIMITS. INSPECTED PLUG, CLEANED PLUG AND REINSTALLED ON #1 GCU. OPS CKS OF #1 & #2 IDG'S AND GCU'S GOOD. PER BOMBARDIER CRC, SWAPPED #1 & APU GCU'S FOR FUTURE TRACKING AND TROUBLESHOOTING PURPOSES. GCU'S AND IDG'S OPS CKS GOOD.