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First vehicle preliminary inspection |
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|  MIL-T-62145E
contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to
ascertain conformance to requirements, however, this does not authorize submission of known
defective material, either indicated or actual, nor does it commit the Government to acceptance
of defective material.
4.2 Government verification. Quality assurance operations performed by the contractor will
be subject to Government verification at unscheduled intervals. Verification will consist of
observation of the operations to determine that practices, methods, and procedures of the
contractor's inspection are being properly applied. Failure of the contractor to promptly correct
product deficiencies discovered shall be cause for suspension of acceptance until correction has
been made or until conformance of product to specification criteria has been demonstrated.
4.3 First vehicle preliminary inspection.
* 4.3.1 Welding procedure and workmanship specimen evaluation. Prior to the start of
fabrication of the subframe and hoist and components and assemblies thereof, an inspection shall
be conducted by the Government to evaluate workmanship specimens and welding procedures
(see 3.8.1 and 3.8.2).
4.3.1.1 Macro-etching. Workmanship specimens shall be cross-sectioned and macro-etched.
Both parts of the specimens shall be made available to the Government representative for
examination.
* 4.3.2 In-process inspection of body and components. The first complete assembled body
and components (subframe and hoist, and their components and assemblies) shall receive an
in-process inspection by the Government prior to prime painting. The inspection shall be
conducted to evaluate workmanship and to determine conformance to structural requirements.
The vehicle shall be tested in accordance with 4.3.2.1 through 4.3.2.3 prior to prime painting,
and dye penetrant or magnetic particle testing shall be performed on all critical areas to inspect
for crack indications under dynamic and static conditions. Any evidence of cracks or permanent
deformation shall be cause for rejection of the vehicle.
4.3.2.1 Dynamic conditions. With the test load specified in table V, the body shall be raised
and lowered for at least 1/2 hour while being inspected for cracks and permanent deformation.
4.3.2.2 Static conditions. With the body in its highest position, three times the payload
specified in table II for classes A, B, and C and two times the payload for classes D and E shall
be placed on the body.
4.3.2.3 Critical areas. At least the following critical areas shall be inspected by the dye
penetrant or magnetic particle testing:
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