Document ID: chunk:federal_register_of_legislation:F2006L01448:body:0:p2
Version: federal_register_of_legislation:F2006L01448
Segment Type: other
Provision Reference: 
Character Range: 2788–5842

further flight if:

                        (i)You find misalignment,

                        (ii) You cannot remove all nicks, scoring, or burrs with light hand polishing using Scotch Brite (maroon or white) and maintain all tolerances and a 32 root mean square (rms) finish,

                        (iii) The diameter of the bolt hole is not .1894 to .1899 inch, or

                        (iv) The bore diameter is not .6248 to .6250 inch.

                     (f) Inspect the shaft attachment bolt, P/N 15-201, that inserts into the pinion, and the attachment bolt, P/N 249-11, that inserts into the male coupling, for fretting or nicks in the area where the bolts contact the shaft and measure the grip diameter.  If a bolt has fretting or nicks or if the grip diameter is not .1889 to .1894 inch, replace the bolt with an airworthy bolt, before further flight.

                     (g) Inspect the male coupling, P/N 249-9, paying particular attention to the bore for nicks, scoring, keyway elongation, burrs, or misalignment and measure the bolt hole diameter and the bore diameter.  Replace the male coupling with an airworthy male coupling before further flight if:

                        (i) You find misalignment;

                        (ii) The keyway has elongation;

                        (iii) You cannot remove all nicks, scoring, or burrs with light hand polishing using Scotch Brite (maroon or white) and maintain all tolerances and a 32 rms finish;

                        (iv) The diameter of the bolt hole is not .1894 to .1899 inch; or

                        (v) The bore diameter is not .6250 to .6260 inch.

                     (h) Inspect the shaft, P/N 249-10, for misalignment.  Measure the diameter of the bolt holes.  Inspect for straightness of the shaft by placing the shaft on a flat surface plate calibrated to work surface accuracy tolerance of .001 inch, rolling the shaft, and measuring the greatest gap between the shaft and the flat surface table.  Magnetic particle inspect the shaft for a crack, paying particular attention to the bolt holes.  Visually inspect the shaft, paying particular attention to a circular area of .500 inch radius from the centre of the bolt holes for the following damage: nicks, scoring, fretting, burrs, or misalignment.  Before further flight, replace the shaft if:

                        (i) You find misalignment,

           (ii) You cannot remove all nicks, scoring, fretting, or burrs with light hand polishing using Scotch Brite (maroon or white) and maintaining all tolerances and a 32 rms finish,

           (iii) The diameter of the bolt hole is not .1894 to .1899 inch,

           (iv) The outer diameter of the shaft is not .6240 to .6250 inch at all points,

           (v) The shaft is not straight and the maximum gap between the shaft and the flat surface table exceeds .007 inch, or

           (vi) You find a crack, a surface or subsurface discontinuity, or pitting.

        (i) Assemble and inspect the gearbox, P/N 278-200,