1) There is no limit on the quantity of nicks and dents if less than 0.03 inch (0.7 mm) in depth for Areas A, B, and
C.
2) There is no limit on the quantity of nicks and dents if
less than 0.04 inch (1.0 mm) in depth for Area D.
(e) Contour surface (does not include fillet and root area):
1) There is no limit on the quantity of nicks, dents and
scratches in Areas A, B, and D as follows:
a) The damage is not more than 0.015 inch (0.3 mm) in
depth. b) The scratches are not more than 0.4 inch (10.0 mm) in length.
2) There is no limit on the quantity of nicks, dents and
scratches in Area C as follows:
a) The damage is not more than 0.005 inch (0.10 mm) in
depth. b) The scratches are not more than 0.4 inch (10.0 mm) in length. 3) If there is distortion in Areas B, C and D, the limits are as follows:
NOTE: To find if a fan blade has distortion, compare it to
____
the other blades from the rotor.
a) No more than 0.34 inch (8.0 mm) out of contour in two locations. b) The length (D) must be more than six times the depth
(C) (Fig. 601). c) Do a flourescent penetrant inspection of the area
(AMM 70-40-01/201).
4) Distortion in Area A is not serviceable.
5) Cracks and tears are not serviceable.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
72-31-02
ALL ú ú C01 Page 605 ú Jul 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(f)
Mid-span shroud to airfoil fillet: 1) Nicks, dents and scratches are not serviceable.
(g)
Mid-span shroud (does not include fillet): 1) There is no limit on the quantity of pits if not more than
0.005 inch (0.1 mm) in depth.
