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Criteria for acceptance of "limited success" tests |
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|  MIL-S-18471G(AS)
APPENDIX
"limited success" tests. Accepted "limited success" tests are tests which
meet the criteria of 30.4.2.1. During any test series, the occurence of a
"system failure" shall require a failure analysis, rerunning of one or more
tests, and revalidation or invalidation of any or all previously conducted tests
The degree of invalidation or revalidation, and the number of tests to be
rerun will be determined by the procuring activity after receipt of the
contractors failure analysis.
30.4.2.1 Criteria for acceptance of "limited success" tests. Individual
"limited success" tests shall be considered accepted "limited success" tests
upon meeting either of the following criteria:
a. Component failure, subsystem failure, degraded performance
or marginal success has been resolved by the successful
completion of a corrective action program. The corrective
action program shall include as integral parts:
(1) Corrective action plan approved in writing by the
procuring activity.
(2) Component or subsystem redesign and retest as required.
(3) Re-evaluation of the classification of previously
completed "system success" tests.
(4) Rerun of one or more system tests at the option of the
procuring activity.
(5) Procuring activity written approval of the completed
corrective action program.
b.
The procuring activity establishes that:
(1) Performance improvement beyond that observed cannot
be achieved within the current state of the art.
(2) Redesign to reduce or eliminate the observed degradation
would introduce another, more objectionable degradation.
(3) The risk associated with the probability of occurrence
of the observed degradation is acceptable when compared
to available alternatives.
30.4.2.2 Compliance with specification acceleration load limits. Compli-
ance with specified acceleration load limits shall not constitute sole cause
for acceptance or rejection of a system. Due to the state of the art, it is
expected that certain tests, particularly the higher speed tests, may not
comply entirely with load limits. The degree and frequency of non-compliance
needs evaluation to determine whether or not the state of the art is met,
improved, or degraded. Therefore, occurrences of non-compliance with specified
acceleration load limits shall constitute cause to classify a non-complying
test as a limited success test.
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