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Interchangeability and replaceability |
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|  MIL-S-18471G(AS)
3.1.12 Interchangeability and replaceability. Parts and assemblies shall
be interchangeable or replaceable in accordance with MIL-I-8500.
3.1.12.1 Reparable assemblies. The contractor shall comply with the
requirements of MIL-STD-680 and appendix B thereto when selecting reparable
equipments, assemblies, and subassemblies for incorporation into the system
design.
3.1.13 Support equipment. The escape system shall be designed to be
maintained at the organizational and intermediate maintenance levels with
common support equipment.
3.1.14 Marking and decals. Labeling shall be in accordance with MIL-STD-
1472 and the following requirements.
3.1.14.1 operating instructions and warnings. All escape system controls
shall be identified and marked in accordance with MIL-M-18012 and MIL-M-43719
and, except for the lower firing control, shall indicate-the direction of
movement for proper operation. Escape system marking decals located on the
exterior surfaces of the aircraft shall be in accordance with MIL-A-25165.
Rescue arrows shall be incorporated on the exterior of the aircraft in
accordance with MIL-I-18464. Warning decals shall be prominently displayed
adjacent to ballistic components and devices to warn rescue crews of the
potential hazard or injury to the aircrewmember or rescue crew if the component
or device should be damaged or actuated during rescue attempts.
3.1.14.2 Ejection seat prefliqht check-off list decals. Decals or metal
foil identification plates shall be prepared in accordance with MIL-P-19834.
They shall depict the ejection seat assembly and each of the critical escape
system components which can be visually checked to ascertain its readiness for
use. The decals shall provide a list identifying each keyed component and,
in terse statements, describe the component condition required for flight
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status (i.e., "Safety pin -- Removed.", "Connector link Connected."). The
checklist shall be located where it can be easily read by the aircrewmember
when performing a preflight check.
3.1.14.3 Maintenance and preflight inspection aids. Where feasible,
decals shall be utilized to denote the location of critical escape system
components, particularly those which are small or hidden and likely to be
overlooked during system maintenance quality inspection and preflight inspection.
3.1.14.4 Age life markings. Date of manufacture of age life limited
components, except textiles and explosives, shall be etched, engraved, or
embossed on the body of the component in a location which shall not deqrade
the performance characteristics of the components. Marking of explosive
components shall be in accordance with MIL-D-21625, MIL-D-23615, or MIL-A-
85041, as applicable. Textiles shall be marked in contrasting colors in
accordance with the applicable drawing using marking ink in accordance with
MIL-I-6903.
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