MILPRF50884F
APPENDIX A
A.3.9 Traceability. Traceability shall be available for review by the qualifying or contracting activity for a minimum
of 3 years after delivery of the printed wiring boards. Unless otherwise specified (see A.6.2.1), supporting test data,
test coupons, and microsection mounts shall be retained by the manufacturer. Lost or inadequate quality records,
supporting data, and test coupons (including microsection mounts and untested test coupons) may result in loss of
qualification.
A.3.9.1 Qualityconformance test circuitry, test coupons, and microsection mounts. Each qualityconformance
test circuitry (QCTC) shall be identifiable with those corresponding production printed wiring boards produced on the
same inspection panel that also produced the QCTC. Unless otherwise specified (see A.3.1.1), each QCTC shall be
traceable to its originating position on the panel. All individual test coupons (including those in microsection mounts)
separated from its QCTC, or qualification test specimen, shall have its traceability maintained back to the inspection
panel, QCTC, or qualification test specimen from where the test coupons originated. When a QCTC or test coupon is
representative of more than one printed wiring board design (multiple designs on each panel), it shall be traceable to
those printed wiring boards fabricated on that inspection panel. When a microsection mount contains more than one
specimen, an orientation mark or other identification marking shall identify layer one of the first specimen. Unless
otherwise listed on the multiple specimen microsection mount, traceability identifying all specimens contained in a
mount shall be maintained.
A.3.9.2 Printed board materials. Traceability shall be such that for each printed wiring board, all printed board
materials specified (see A.3.1.1) or used shall be traceable to a material production lot, inspection lot, or other
specified grouping.
A.3.9.3 Serialization. When the contract requires the printed wiring boards to be serialized, each printed wiring
board or qualification test specimen shall be marked with a unique serial number assigned consecutively within the
inspection lot, allowing traceability of the printed wiring board and its test results.
A.3.9.4 Quality records. A system shall be in place to track all quality records, including but not limited to, the
results of all qualification tests, the results of all inspection of product for delivery tests (binary or variables data), any
required failure analysis, and contract services records. The retention period for each type of quality records shall be
a minimum of 3 years.
A.3.10 Rework and repair.
A.3.10.1 Rework. The touch-up of surface imperfections in the base material, removal of residual plating
materials or extraneous copper shall be permitted when such action does not affect the functional integrity of the
printed wiring board.
A.3.10.2 Repair. When inspected in accordance with A.4.8.1, printed wiring boards shall not be repaired or reveal
any evidence of repair.
A.3.11 Recycled, recovered, or environmentally preferable, or biobased materials. Recycled, recovered,
environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous
life cycle costs.
A.3.12 Workmanship. Printed wiring boards shall be processed in such a manner as to be uniform in quality and
shall be free of defects in excess of those allowed in this appendix that could affect life or serviceability.
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