What was found
LOST HYDRAULIC PSI IN SYSTEM NR 3 AND DIVERTED TO TYS. EMERGENCY WAS DECLARED. FOUND HYD SYSTEM 3B PRESSURE LINE CHAFED THROUGH FAIRLEAD IN MLG BY AREA. REPAIRED LINE IAW AMM 20-22-00. LEAK CHECK GOOD. VERIFIED PART EFFECTIVITY. REMOVED AND REPLACED 3A & 3B ACMPS IAW AMM 29-12-03. LEAK AND OPS CHECK GOOD. REMOVED AND REPLACED RETURN MANIFOLD FILTER IAW AMM 29-12-40. LEAK CHECK GOOD. REMOVED AND REPLACED CASE DRAIN FILTER IAW AMM 29-12-38. LEAK CHECK GOOD. REMOVED AND REPLACED PRESSURE MANIFOLD FILTER IAW AMM 29-14-09. LEAK CHECK GOOD.