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|  MIL-S-63348A(AR)
4.7.5.4 Rejected weapons.
4.7.5.4.1 Corrections. Weapons rejected because of malfunction
or unserviceable part during the test shall be corrected by the
contractor and the corrective action shall be recorded. In the
event the malfunction cause is classified as class II or class III
(see 6.5.5), the contractor shall immediately initiate action in
accordance with paragraph 4.7.5.5.2.1.
4.7.5.4.2 Retest. The weapons shall be retested by firing two
thirty round sequences, the first similar to that specified in
4.7.5.3.1, the second to that specified in 4.7.5.3.2. The weapons
shall operate without malfunction or unserviceable parts and shall
meet the cyclic rate of fire requirements.
4.7.5.4.3 Retest failure. In the event the weapons fail in the
retest, the procedure in 4.7.5.4.1 shall be followed. The weapons
shall be retested, by firing two (2) thirty round sequences in 30
round continuous bursts and one (1) thirty round sequence in six (6)
bursts
of approximately five (5) rounds each. Weapons shall operate
without malfunction or unserviceable parts and shall meet the cyclic
rate of fire requirements. The cyclic rate shall be recorded.
4.7.5.5 Process control criteria
4.7.5.5.1 Process average. The process average for total
weapon tested for function firing during one shift shall not exceed
2.0% defective. This process average for each shift shall be
maintained and be available for government review.
4.7.5.5.2 Unacceptable average. When the process average
exceeds 2.0% defective.during one shift, the contractor shall review
the failure causes for determination of seriousness, class I, II ,
or III malfunction (see 6.5.5.). The contractor, in addition, shall
provide the government representative with objective evidence of his
determination.
4.7.5.5.2.1 Class II and III malfunctions. When the
malfunction cause is classified as class II or III, the contractor
shall institute corrective action in the manufacturing processes and
associated quality control procedures to preclude recurrence of the
cause and to assure that all weapons and components containing
similar defects are purged from the prime and vendor or prime or
vendor facilities. When authorized by the government
representative, this corrective action need not include the
screening of weapons previously tested for function firing. Upon
completion of the preceding, the contractor shall recondition the
rejected weapons and retest the weapons as specified in 4.7.5.4.2.
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