What was found
AFTER T/O AFT GALLEY PIGTAIL SPARKING AND POPPING NOISE. AFT GALLEY LOST PWR 2 OF 5 PNL'S. FWD GALLEY ALSO LOST PWR. R HYD Q WENT TO ZERO AND RETURNED TO NORM TWICE, STABILIZED AT 0.93. RT FUEL Q BLANKED AND RETURNED TO NORM. PULLED CB N52 IN AFT GALLEY AND U34, P11 (R AFT GALLEY). RESET CB U34, P11 AND PWR RETURNED TO FWD GALLEY, AND AFT GALLEY EXCEPT CART CONTROL N51, N52, N53. PULLED CB'S N51, N52, N53<>104881. PULLED CB'S N51, N52, N53 AS PRECAUTION. CB N52 FOR ASSOCIATED PIGTAIL DID NOT TRIP ON INITIAL SHORT. REPLACED CABLES P51, 52 AND 53, TESTS OKAY.