SECTION VIII GENERAL MAINTENANCE PROCEDURES (Continued)
1-78 INSPECTION (Cont)
2. Measuring Devices (Cont) diameters. If the gage
enters at any point, the part is worn beyond the
assemblies, are returned to an overhaul facility for
inspection and/or repair, a record of total operating
hours or flight cycle (as applicable) must be included to
enable an overhaul facility to determine service life of
3. Oil Filter Fiber Type Element.
No cleaning is permitted on this type
Elements are to be inspected every
100 hours and replaced every 300
Check that seal is properly seated in lower end
If seal is loose, discard element and install
4. Oil Filter Metal Type Element.
Elements are to be visually inspected
every 100 hours and replaced every
If a stepped teflon spacer is installed on inner
face of filter cover, check spacer condition and replace
Inspect for visible metal contamination. If no
contamination is evident, proceed as detailed in steps c
Clean element (Paragraph 1-77).
Using a 10 power (minimum) magnifying glass,
inspect filter element for blocked passages and broken
If dents and /or broken wire mesh are found, the
filter element must be replaced.
If more than. five percent of visible passages
are found blocked after repeated cleaning, element
must be returned to Depot Maintenance for ultrasonic
cleaning and a bubble point test.
If a small amount of visible metal contamination
is evident, proceed as detailed in steps h and i,
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