What was found
AIR DIVERSION, NR 1 ENGINE UNABLE MAX POWER AT TAKEOFF. NOTE A/T'S ON, THRUST LEVER FULL FWD. PERFORMED TSM 73-21-FAULT TREE 807. BLOCK 1, FIG 104C. BITE CHECKED LT PIMU, NO FAULTS NOTED. ACCOMPLISHED HIGH POWER RUN, ACHIEVED EPR 1.57, NR 1 ENGINE. MAX T/O POWER REQUIRED FROM THRUST RATE COMPUTER WAS 1.57. ACHIEVED 1.57 EPR ON LT ENG WITH A/T OFF. POWERPLANT ENGINEER CONSULTED. OK FOR FURTHER SERVICE.