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|  MIL-S-85419 (AS)
3.9 Reliability and Maintainability.
3.9.1 Reliability Program. The supplier shall prepare a
proposed reliability program plan for the starter/APU in
accordance with MIL-STD-785 and shall submit it to the approving
First article approval will not be granted to a
activity.
product until a reliability program for the product has been
approved by the approving activity, in addition to the product's
passing the first article tests specified herein.
3.9.1.1 Reliability Target. The target Mean Time Between
Failures (MTBF) for the starter shall be 1000 hours. This MTBF
is based on the endurance test cycle defined in section 4.5 of
this specification.
3.9.2 Maintainability Program. The supplier shall prepare a
proposed maintainability program plan for the starter in
accordance with MIL-STD-470 and shall submit it to the approving
First article approval will not be granted to a
activity.
product until a maintainability program for the product has been
approved by the approving activity, in addition to the product's
passing the first article tests specified herein.
3.9.2.1
Quantitative Requirements.
3.9.2. 1.1 Direct Maintenance Manhours/Flight Hour (DMMH/FH).
The starter/APU shall be designed such that DMMH/FH shall not
exceed 0.0699.
3.9.2.1.2 Mean-Time-To-Repair (MTTR). The MTTR for
organizational level unscheduled maintenance shall not exceed 1.7
elapsed hours, excluding aircraft access. Repair at this level
shall include troubleshooting, fault isolation and functional
checkout, utilizing BIT and built-in failure monitoring features
where designed into the equipment. Organizational level
maintenance shall be accomplished without use of Peculiar Ground
Support Equipment (PGSE).
3.10 Marking.
Identification of Product. Equipment, assemblies, and
3.10.1
parts shall be marked as specified in Standard MIL-STD-130.
Starter/APU shall be marked with the following information:
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