MIL-STD-1796A(USAF)
5.4.5 Identification and tracking of critical items and critical functions.
The contractor shall track the flight and safety critical functions performed by avionics and identify the impact of any changes from the earlier phases.
5.4.6 Analysis.
The contractor shall update any reliability, maintainability and diagnostics analysis as needed. The contractor shall update durability and design life analysis to reflect the final design and results of testing.
5.4.7 Tests and demonstrations.
The contractor shall complete environmental and electro-magnetic qualification verification. The contractor shall complete durability verification. This may include retest or analysis to verify results of earlier design refinements. The contractor shall complete system integration lab tests, on-aircraft ground tests and flight tests to verify integrity requirements. This may include failure modes effects testing. The contactor shall perform acceptance tests on equipment to be delivered and validate that acceptance tests are an adequate measure of performance. The contractor shall establish and validate diagnostic test or evaluation criteria that will be used to declare each subsystem serviceable or not serviceable in the operational environment. Failures should be tracked during these various tests and potential design shortcomings addressed.
5.4.8 Life management.
The contractor shall establish the adequacy of (or changes needed to) the chosen source of repair and level of repair for each subsystem or replaceable module to maintain integrity of the fielded system. The contractor shall define any special maintenance required to maintain integrity of the system in conjunction with anti-tamper measures. Integrity issues affecting maintenance or operations shall be documented in Technical Orders (TOs). For example, if a flight-line test to verify that back-up modes are functional is needed, it must be documented in the TOs.
5.5 Phase V: Force management (operational).
Phase V consists of maintaining the data and processes necessary to support the fielded system. Responsibility for these tasks may not be awarded to the development prime contractor and may be accomplished by the responsible Air Logistics Center (ALC) or alternate supporting contractor. For avionics, this includes tracking of life-limited items (if any), along with the criteria and process for maintenance of any critical parts or critical functions. Redesign or replacement of avionics equipment is typically only done on a case-by-case basis when a device is used beyond its original intended life, when an unanticipated "bad actor" part is identified, when a device becomes non-repairable, or when the system is upgraded to incorporate new mission capabilities.
5.5.1 Planning and coordination.
No major or specific tasks are identified for this element during this phase.
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