A319 A320 A321 飞机维护手册 AMM Aircraft Maintenance Manual 40_部分3.pdf388页

C F M 56-5B TASK 72-52-00-290-001- 01 Borescope Inspection of the High-Pressure Turbine Blades (from the rear) 1. Reason for the Job __________________ Refer to the MPD TASK: 725000-C1 This TASK is applicable for /P engines. Inspection of the high pressure turbine (HPT) blades from the rear is limited to the areas that can be seen with a rigid borescope, at the 5:30 and 8:30 o clock borescope ports (S16 and S17). The borescope ports at the 5:30 and 8:30 o clock positions are located immediately in front of the combustion case aft flange. Inspection of the HPT blades from the front can be accomplished, if required, with a flexible borescope through the spark igniter ports (S10 and S11) of the combustion case. ____ NOTE : There are 80 HPT blades installed in the rotor. 2. Job Set-up Information ______________________ A. Fixtures, Tools, Test and Support Equipment ------------------------------------------------------------------------------REFERENCE QTY DESIGNATION ------------------------------------------------------------------------------No No No No No specific specific specific specific specific 1 1 1 1 warning notice 0.75 in. square drive socket 2ft. long breaker bar access platform 1 m (3 ft. 3 in.) Torque Wrench : range 36.00 to 220.00 lbf.in (0.40 to 2.60 m.daN) BORESCOPE KIT BORESCOPE - LIGHT SOURCE SET MONITOR, RESOLUTION BORESCOPE MOTOR, DRIVE - CORE ENGINE ROTATION

856A1320 856A1322 856A1323 856A1488

EFF : R CES

ALL

72-52-00

Page 616 May 01/05


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