What was found
WHILE ACCOMPLISHING T/C SBLEAP-1B-72-0317-BSI-1 FOUND #2 ENG TGB SLEEVE LEAKING AFTER PART POWER LEAK CHECK. GROUNDED - YES. OPENED #2 ENG FAN COWLS REF AMM71-11-04 REMOVED #2 ENGINE TRANSFER GEARBOX PER AMM 72-62-03-000-801-G00. REMOVED TRANSFER GEARBOX SLIDER, REPLACED BOTH TRANSFER GEARBOX SLIDER SEALS. REINSTALLED TRANSFER GEARBOX SLIDER. REINSTALLED #2 ENGINE TRANSFER GEARBOX PER AMM 72-62-03-400-801-G00. CLOSED #2 ENGINE FAN COWLS PER AMM 71-11-04-410-803. ACCOMPLISHED PART POWER LEAK CHECK PER AMM 71-00-00-710-801-G00. NO LEAKS NOTED.