What was found
SNA-PHX - FLT 207 - AIRCRAFT VIBRATES EXCESSIVELY IN ALL FLIGHT REGIMENS EXCEPT WITH POWER BACK, DURING DESCENT. AIRCRAFT LANDED WITHOUT FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE MEC POWER AWA TASK CARD R8M73001. RIGGED PER AWA TASK CARD F8M75001 AND TESTED PER AWA TASK CARD F5M71001. REMOVED AND REPLACED NR 1 ENGINE FUEL PUMP PER AWA TASK CARD R8M73001 AND TESTED PER TASK CARD F5M71001. AIRCRAFT RELEASED FOR SERVICE. (M)