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 |  Fuel supply manifold  |Must not more than 10 percent of  |Replace the  |
 |  tubes and fuel supply  |the normal shroud contour and  |drain shroud  |
 |  tubes  |does not affect the shroud  |  |
 |  |interface.  |  |
 |  |No dents in the weld areas  |  |

 ................................................................................ |Nicks, scratches or | | | |gouges in: | | | ................................................................................ | Drain shroud wall |0.010 inch (0.25 mm) maximum |Replace the | | |depth |drain shroud | ................................................................................ | Flange mating surface |0.015 inch (0.38 mm) maximum |Replace the | | (non-sealing) |depth |drain shroud | ................................................................................ | Flange seating or |0.005 inch (0.13 mm) maximum |Replace the | | sealing surfaces |depth and must complete the leak |drain shroud | | |check with no error | | | |(AMM 71-00-00/501, Test No. 3) | | ................................................................................ | Drain shroud tube |All amount after removal of the |Remove the high | | flange and coupling |high metal |metal | | sealing surfaces | | | ................................................................................
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-11-05
 ALL  ú ú C01 Page 603 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
~.............................................................................. | | | CORRECTIVE | | CHECK | LIMIT | ACTION | ................................................................................
 |Thread damage  |One-half thread cumulative or  |Remove the  |
 |  |continuous after removal of the  |damaged thread  |
 |  |damaged threads  |replace the  |
 |  |  |shroud  |

 ................................................................................ |Fuel Supply Manifold Tubes| | | |For: | | | ................................................................................ | Wrinkles in bend ID |3 percent of nominal line outside |Replace the fuel| | |diameter (OD) |supply manifold | | | |tubes | ................................................................................ | Dents or flat areas in |Not more than 20 percent of |Replace the fuel| | straight lengths |nominal line OD with a minimum |supply manifold | | |radius of 0.070 inch (1.78 mm) |tubes | | |and no more than one dent per | | | |inch (25.4 mm) of length | | ................................................................................ | Nicks, scratches, chafing|0.005 inch (0.13 mm) maximum depth|Replace the fuel| | or scores in the straight|after you blend the tube to a |supply manifold | | or bend sections |smooth radius |tube | ................................................................................ |Fuel nozzle supply tubes | | | |for: | | | ................................................................................ | Cracks, splits or kinks |Not serviceable |Replace the fuel| | | |nozzle supply | | | |tube | ................................................................................ | Wrinkles in bends |The depth must not be more than |Replace the fuel| | |3 percent of the nominal tube |nozzle supply | | |diameter or 0.06 inch (1.52 mm) |tube | | |deep whichever is smaller | | ................................................................................
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-11-05
 ALL  ú ú C01 Page 604 ú Jul 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
~.............................................................................. | | | CORRECTIVE | | CHECK | LIMIT | ACTION | ................................................................................ | Dents |No more than one in each tube, |Replace the fuel| | |provided the depth is not more |nozzle supply | | |than 10 percent of the tube OD and|tube | | |the radius is not less than 2 | | | |times the thickness of the tube | | | |wall | | ................................................................................ | Flat areas |Length must not be more than 2 |Replace the fuel| | |times the tube OD, or the contour |nozzle supply | | |change must not be more than 10 |tube | | |percent of the tube OD | | ................................................................................ | Nicks, scratches, chafing|Depth must not be more than 0.01 |Replace the fuel| | or scores in the straight|inch (0.3 mm) after blend of sharp|nozzle supply | | or bend sections |edges. Area not to be more than |tube | | |0.28 inch (7.0 mm) long x 0.06 | | | |inch (1.5 mm) wide | | ................................................................................ | Seating surfaces on | | | | nipples and ferrules for:| | | ................................................................................ | Circumferential |All amount after removal of the |Remove the high | | scratches areas A and C |high metal |metal | | (Fig. 601) | | | ................................................................................ | Circumferential |All amounts that cannot measure |Remove the high | | scratches area B |with a 0.040 inch (1.0 mm) radius |metal | | |ball scriber | | ................................................................................ | Axial scratches area |All amount after removal of the |Remove the high | | A and C |high metal |metal | ................................................................................
　
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