_ chord width.
2.
There must not be more than 2 damaged areas on each
_ airfoil.
3.
Damaged areas must be separated by 0.5 inch (13 mm)
_ radially and 0.2 inch (5 mm) from the leading and trailing edges.
4.
There must not be more than 5 damaged blades in
_ each quadrant.
5.
The damage must not be more than 5 percent of the
_ blades. c) If the damage is not in the above limits, a maximum service extension of 5 cycles or 10 hours is permitted.
3) Nicks or dents on the concave or convex airfoil surfaces not in Area E. a) Any amount of nicks or dents is permitted if they are
less than 0.015 inch (0.040 mm) deep and the damage does not go through to the opposite surface. b) Up to 5 dents are permitted if they extend less than
0.01 inch (0.25 mm) on the opposite side.
c) If the damage is not in the limits, it is serviceable only under all the conditions that follow:
1.
Damaged areas must not be more than 50% of the
_ chord width.
2.
There must not be more than 2 damaged areas on each
_ airfoil.
3.
Damaged areas must be separated by 0.5 inch (13 mm)
_ radially and 0.2 inch (5 mm) from the leading and trailing edges.
4.
There must not be more than 5 damaged blades in
_ each quadrant.
5.
The damage must not be more than 5 percent of the
_ blades.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
72-00-00
ALL ú ú C01 Page 680 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
Low Pressure Turbine (LPT) Rotor Blade (1st thru 3rd Stage) - Inspection
________________________________________________________________________ d) If the damage is not in the above limits, a maximum service extension of 5 cycles or 10 hours is permitted.
4) Missing pieces of metal. a) Missing pieces of metal in Area E are not serviceable. b) In areas other than Area E, missing pieces of metal are
serviceable only under all the conditions that follow:
1.
The damaged areas must not be more than 50% of the
_ chord width.
2.
There must not be more than 2 damaged areas on each
_ airfoil.
3.
Damage must be separated by 0.5 inch (13 mm)
_ radially and 0.2 inch (5 mm) from the leading and trailing edges.
4.
There must not be more than 5 damaged blades in
_ each quadrant.
5.
The damage must not be more than 5 percent of the
_ blades.
c) If the damage is not in the above limits and there is no N1 vibration drift reported from the last leg through AVM (Fan and LPT), a maximum service extension of 5 cycles or 10 hours is permitted to include one complete airfoil missing and any number of missing tip shrouds and their airfoil tips.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737-300 400 500 AMM 飞机维护手册 ENGINE 发动机 1(45)
