MIL-STD-790G
w/ CHANGE 1
APPENDIX A
c. It should be verified that the manufacturer's manufacturing and quality documentation control system is being adequately maintained. This means tracing document status all the way from responsible authority to its location on the production line (see 5.2.8).
d. Incoming inspection area should be examined to determine that the conforming and nonconforming materials are segregated. Traceability should be from the finished product traveler to the incoming inspection (see 5.2.12). Adherence to applicable material specifications and standards in section 2 of this specification should be verifiable.
e. Manufacturing travelers should be checked to determine that they are being filled out and signed off at every step of the production and test stages. A sample review of past travelers is recommended. Significant steps of the process should be included on the traveler (see 5.2.7j). If part of group A is performed in production testing, the manufacturer should be able to produce data for group A tests for each inspection lot.
f. Logs on voltage and temperature checks in ovens and chambers, life and burn-in start and stop times, etc., should be in place and filled in.
g. Voltages and temperatures should be checked at least once a week on life test ovens.
h. Overvoltage and thermal runaway protections on reliability life test chambers should be utilized
(see 5.2.7).
i. Environmental controls should be maintained and monitored as required in the specification or standard that is applicable.
j. All instructions (e.g., setting equipment, testing, and handling) should be signed, dated, and part of documentation control system. Operators should follow instructions for procedures (see 5.2.8).
k. Process control records should be reviewed to verify that they are being utilized and that process corrections are implemented when a need is indicated by the control charts (e.g., X bar and R charts) (see 5.2.9).
l. Manufacturer should describe and maintain failure and defect analysis systems which should result in corrective actions to reduce part failures and defects to acceptable level (see 5.2.4).
m. A sample or production processes and controls should be reviewed to determine that operators are following the steps outlined in the production and test documents (see 5.2.8).
n. It should be determined that distributors are being controlled to assure that the product sold by the distributor is of the same quality and performance as parts acquired directly from the manufacturer (see 5.1.5).
o. The calibration system should always be checked (see 5.2.2).
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