MIL-PRF-49293B
3.9.1 Maintainability. The Mean Time To Repair (MTTR) should not exceed 10 minutes
at organizational and 120 minutes at GS level. The equipment should not require
checkout calibration at intervals of less than 1080 days.
3.10 Safety Engineering.
3.10.1 Personnel Hazards. Personnel hazards should be kept to a minimum. Compliance
with these requirements will be verified through a visual inspection.
3.10.2 Corner and Edge Rounding. All exposed corners and edges should be rounded to
eliminate possible injury to personnel due to laceration and cuts.
3.10.3 Radioactive Materials. Radioactive materials should not be used (e.g., luminous
dials/markings, electron tubes, surge arrestors and lenses).
3.11 Nameplate and Marking (See 4.3.3).
3.11.1 Front Panel Markings. See Requirement 67 of MIL-HDBK-454 for guidance.
3.11.2 Nameplates. Each nomenclatured item should have a nameplate. See Requirement
67 of MIL-HDBK-454 for guidance.
3.11.3 Serial Numbers. Each AN/PDR-75 should be serial numbered in accordance with
the contract (See 6.2.k).
3.12 Workmanship. All electronic parts, components, assemblies and sub-assemblies
should be free of smudges, excess solder, metal chips or the existence of any foreign
material on any surface. Bearing assemblies should be free from rust, dirt or tool marks.
Wires and integrated circuitry should be protected from contact with rough or irregular
surfaces and should be shielded from shorting (See 4.3.3).
4. VERIFICATION.
4.1. Calibration. The contractor should perform calibration as described in TB 9-6665-
286-35, as required in paragraph 3.3.2 of this specification, prior to operating the unit
before and after conduction of the tests specified in the Section 4 of this specification.
4.2 Classification of Inspections. The inspection requirements specified herein are
classified as follows:
a.
First Article inspection (See 4.3).
b.
Inspections covered by subsidiary documents (See 4.3.3).
c.
Conformance inspection (See 4.4).
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