MIL-DTL-87158 Technical Manuals: Aircraft Battle Damage Assessment And RepairThis detail specification covers requirements for the preparation of technical manuals on aircraft battle damage assessment and repair \(ABDAR\), and quick repair instructions not included in TO 1-1H-39/NAVAIR 01-1A-39. Aircraft specific manuals will describe quick ABDAR procedures to be applied to the specific aircraft. Duplication of information contained in other maintenance manuals should be kept to a minimum in the specific ABDAR manual.

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MIL-DTL-87158C

6.9 Category IV, special structure. These are structures which are non-structural, but essential for safe light

and aircraft performance. Repair requirements for these structures are based upon considerations other than

strength; such as aerodynamics, pressurization, or engine performance (see 3.12.2.1.4).

6.10 Category V, repair restrained structure. These are structures which are not feasible to repair under

battle damage repair restraints, due to design and shape. These structures include all complex machined or

forged parts, and irregular shaped extrusions, channels, or angles, etc. These structures are not feasible

to replace or local manufacture, without depot support. The only repairs consist of minor nick, dent,

and scratch removal (see 3.12.2.1.5).

6.11 Changes from previous issue. Marginal notations are not used in this revision to identify changes

with respect to the previous issue due to the extent of the changes.