_________
 (Ref. Fig. 601/TASK 73-11-30-991-300, 602/TASK 73-11-30-991-301) Subtask 73-11-30-230-051
 A. Do a fluorescent penetrant inspection to make sure of actual or suspected cracks in fuel manifolds or tubes (Ref. TASK 70-51-00-230-002).
 Subtask 73-11-30-210-051
 B. Do a visual inspection of the items that follow:
 -------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
R R  1. Fuel manifold tubes for: - Cracks, splits or kinks. - Wrinkles in bends. 
R  - Dents. 
R  - Flat areas. 

Not serviceable.  Replace the engine.
The depth must not be  Replace the engine.
 more than 3 percent of
 the nominal tube
 diameter or 1.52 mm
 (0.06 in.) deep
 whichever is smaller. 
No more than 2 in each  Replace the engine.
 linear foot, provided
 the depth is not more
 than 10 percent of the
 tube OD and the radius
 is not less than 2 times
 the thickness of the
 tube wall. 
Length must not be more  Replace the engine.
 than 2 times the tube
 OD, or the contour
 change must not be more
 than 10 percent of the
 tube OD.

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 Fuel Nozzle Coupling Nut
 Figure 601/TASK 73-11-30-991-300

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 Spherical Seat Fitting Inspection Areas
 Figure 602/TASK 73-11-30-991-301
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 -------------------------------------------------------------------------------
INSPECT/CHECK  MAXIMUM SERVICEABLE LIMITS REMARKS
 -------------------------------------------------------------------------------
- Nicks, scratches, chafing or scores in the straight or bent sections. 0.005 in. (0.12 mm) maximum depth. Replace the engine.
 2. Tube coupling nuts for:
 - Damaged corners.  Any amount provided you can get the correct torque. Replace the engine.
 - Damaged thread.  One half thread total or continuous not there. Replace the engine.
 - Lockwire hole deformation and wear.  Permitted provided the metal around the hole isnot cracked. Replace the engine.
 - Lockwire hole torn open.  Permitted provided one hole for each coupling nut stays intact. Replace the engine.
 3. Fitting seating surfaces for: 
R R R  NOTE : Do this portion of the fuel manifold inspection if you think you have____ a leak, if you find damage after you remove a fuel nozzle, or if you see visual damage. 
R R R  NOTE : If not already done, disconnect the fuel supply tube from applicable____ fuel nozzle (Ref. TASK 73-11-40-000-001) and (Ref. TASK 73-11-40-400-001).
 - Circumferential and axial scratches in areas A and C.  Any amount 0.13 mm (0.005 in.) or less indepth after the removal of high metal. Replace the engine.
 - Circumferential scratches in area B  Any amount that cannot be felt using a 1 mm (0.04 in.) radius ball scribe. Replace the engine.

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 -------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
- Axial scratches in  Not serviceable.  Replace the engine.
 area B.
 - Nicks and pits in  Any amount less than  Replace the engine.
 area C.  0.81 mm (0.032 in.)
 after blending.
 - Nicks and pits in  Not serviceable.  Replace the engine.
 areas A and B.
 - Circumferential  Any amount, provided  Replace the engine.
 score marks on the  that the score mark does
 silver plated  not go through the
　
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