What was found
DURING CLIMBOUT CRUISE AND DESCENT EXPERIENCED WHITE SHED BUS 1&2 OFF INTERMITTENTLY AND AN BLEED 1 FX THAT WENT AWAY VIA THE CHECKLIST. BELOW 10,000 FT. AMBER CONTOL FX, A/P FX SWPS FAULT AND SEPS A/ I, ALONG WITH YD FX AND A/P FX. ///SIGN-OFF///THE BLEED SYSTEM WAS AN ISOLATED EVENT AND THE RECOMMENDATION IS TO FOLLOW SL505-36-0003-REV.02 - PNEUMATIC- BLEED 1 (2) FAIL DUE TO BLEED TEMPERATURE SENSOR. ON BLEED ONE FAILURE WE PERFORM GROUND RUN OF BOTH ENGINE DID OPS CHECK OF THE BLEED AIR SYSTEM IAW EMS 505S AMM 36-00-00-710-801-A/500 OPS CHECKED GOOD NO DEFECTS NOTED. NEXT WE C/W SL505-36-0003 REV.02 AND FOUND NO DEFECTS AND IS FOUND TO BE TRANSITORY CONDITION. NO FUTHER ACTION AT THIS TIME. DURING ENGINE GROUND RUN AND LEAK CHECK OF FOUND FAN VALVE TO PRECOOLER LAIR LINE LEAKING FROM FLANGE , FLANGE SEPERATED FROM FIBERGLASS TUBE AT FAN VALVE. ORDERED NEW TUBE AND RECEIVED IT REMOVE OLD TUBE AND INSTALLED NEW TUBE LAW EMB505S AMM 36-11-02 OPS CHECKED AND LEAK CHECKED GOOD.