MIL-DTL-87158C
3.12.2.3 Damage limitations. Damage limitations for all Category I, II, IV, and V structures shall be
provided. The limitations shall include the size and location for classes A, B, and C damage up to
which repairs can be made under ABDAR constraints. The maximum number of repairs, and the limits
for the proximity of multiple damage to a given structural component, shall be included. Guidelines,
instructions, and illustrations for accomplishing repair, shall be provided in the zone chapter. Speciic weapon
system typical repairs, not covered by the general ABDAR TO 1-1H- 39/NAVAIR 01-1A-39, shall be
developed, and included in Chapter 6, using applicable illustrations/tables.
3.12.2.4 Category/class. Each category/class of damage, for each component of the major structural groups,
shall be clearly deined within the zone chapter of the manual.
3.12.3 Section II, system assessment. This section shall contain the following requirements for each
system assessment:
a. System serviceability criteria for the speciic ABDAR manual shall be classiied as fully capable
(FC), degraded performance (DP), or not required (NR), as related to minimum essential systems,
subsystems, and components required for a designated mission. Systems, subsystems, and
components coded NR shall be noted in the zone chapter, but shall not be discussed in text,
except when a maintenance action is required to safe/disable the system to prevent further damage
or interference with other required operational systems. This criteria shall be illustrated in a table
which shall include system/subsystem, mission serviceability criteria, and remarks (see Figure 6).
b. A brief description and damage assessment of each mission essential system, subsystem, and
component in the zone, shall be included.
c. Orthographic view drawing(s) showing location of mission essential system components in
the zone, shall be included.
d. Tables shall be developed to include index number, nomenclature, acceptable damage, maintenance
action/repair reference, functional checks, and effects/restrictions, if applicable (see Figure 7).
e. Specialized repair procedures for aircraft systems, subsystems, or components that are unique to
that zone, shall be developed, and included in the zone chapter. Instructions outlining recommended
procedures for locating and disabling/capping off damaged system lines not required, shall be
included in the zone chapter. Specialized repairs for fuel tank areas, light controls, radomes, and
transparencies, shall be developed, as appropriate. Changes to vulnerability reduction features
such as armor, foam, and electromagnetic pulse, shall be addressed, if repair or deactivation is
necessary. Repair procedures to restore line replaceable units to a serviceable condition, shall be
provided, if applicable. These repairs shall be addressed in each applicable zone.
3.12.3.1 Avionic/electrical system assessment.
This system assessment shall contain the requirements of
3.12.3. If wire/harness identiications for the
speciic aircraft vary from that of general ABDAR TO
1-1H-39/NAVAIR 01-1A-39, clariication shall
be provided. Warnings concerning maximum power/voltage
usable for systems checks shall be speciied,
if applicable, to preclude inadvertent system operations
(e.g., munitions).
3.12.3.2 Mechanical system assessment. This system assessment shall contain the requirements of 3.12.3.
Schematics or igures to deine pertinent limitations/dimensions between bellcranks, actuators, and pivot points,
shall be developed. Rotary wing aircraft components, such as main and intermediate tail gear boxes, and
main and tail rotor blades, shall be included. Pressure/volume/travel limits shall be speciied, if applicable.
3.12.3.2.1 Cable system. Locations where cables are used shall be identiied, and any peculiar repairs
shall be described. Instructions outlining recommended procedures for disabling secondary light control
systems which are desirable, but not essential, shall be included. Cable systems shall include cable
tension, travel limits, and special tools.
3.12.3.3 Pneudraulics system assessment. This system assessment shall contain the requirements of 3.12.3.
Pressure/volume/travel limits shall be speciied, if applicable. Pneudraulic system lines shall be classiied by
temperature, if appropriate, and pressure, to correspond with pressure ranges speciied in appropriate aircraft
pneudraulic technical manuals. Allowable leak rates for each system shall be speciied.
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