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(f) Unbonding of the metallic leading edge is permitted if the
total length of the unbonded areas is not more than 0.8 in.
(20,32 mm).
(g) OGV's with nicks, dents, or scratches on the composite leading
edge after some or all of the metallic leading edge is missing.
(Fig. 602):
1) There is no maximum quantity of nicks, dents, or scratches
on the composite leading edge if they are not more than
0.12 inch (3 mm) in depth.
2) A maximum service extension of 100 cycles or 250 hours is
permitted if the nicks, dents or scratches are not more
than 0.16 inch (4 mm) in depth.
(h) Nicks, dents or scratches on the metallic leading edge
(Fig. 603):
1) There is no limit on the quantity of nicks, dents, or
scratches if they are not more than 0.12 inch (3 mm) in
depth.
2) A maximum service extension of 100 cycles or 250 hours is
permitted if the nicks, dents, or scratches are not more
than 0.16 inch (4 mm) in depth.
(i) Nicks, dents or scratches on the trailing edge (Fig. 604):
1) There is no limit on the quantity of nicks, dents, or
scratches if they are not more than 0.12 inch (3 mm) in
depth.
2) A maximum service extension of 100 cycles or 250 hours is
permitted if the nicks, dents, or scratches are not more
than 0.2 inch (5 mm) in depth.
(j) Nicks, dents or scratches on the airfoil surfaces:
1) There is no limit on the quantity of nicks, dents, or
scratches if they are not more than 0.02 inch (0.5 mm) in
depth.
2) A maximum service extension of 100 cycles or 250 hours is
permitted if the nicks, dents, or scratches are not more
than 0.06 inch (1.5 mm) in depth.
(k) Loose bonds on the inner or outer platforms:
1) Loose bonding on the inner or outer platforms is not
serviceable.
2) A maximum service extension of 10 cycles or 25 hours is
permitted with loose bonding on the inner or outer
platforms.
(l) Nicks, dents or scratches on the inner and outer platforms:
1) There is no limit on the quantity of nicks, dents, or
scratches if they are not more than 0.04 inch (1 mm) in
depth.
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72-33-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
OUTLET GUIDE VANES (OGV) INSPECTION
___________________________________
2) A maximum service extension of 100 cycles or 250 hours is permitted if the nicks, dents, or scratches are not more than 0.12 inch (3 mm) in depth.
(m)
Cracks on the inner and outer platforms are not serviceable.
(n)
Cracks between the attachment hole and the airfoil on the outer platform: 1) Any number of little cracks is permitted on the outer
platform in the area between the attachment hole and the airfoil. The longest crack permitted is one that starts in the attachment hole and continues up to the airfoil.
S 846-030-C00
(4) Do the procedure to put the airplane back to its usual condition.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
72-33-00
ALL ú ú C02 Page 623 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
OGV INNER SHROUD INSPECTION
___________________________
TASK 72-33-00-216-031-C00
9. OGV Inner Shroud Inspection
___________________________
A. Access
(1) Location Zones
506 No. 1 Engine
606 No. 2 Engine
B. Make an Inspection of the OGV's Inner Shroud (Fig. 601)
S 846-032-C00
(1)
If not already done, do the procedure to prepare for the inspection.
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