MIL-DTL-87929D
which may be required. The WP shall also contain step-by-step procedures for each emergency condition
that may occur during assembly, handling, servicing, or maintenance, and instructions for assembly and
inspection at a forward base under heavy engagement.
3.4.3.5 Illustrated Parts Breakdown (IPB) WP. When speciied (see 6.2g.) an IPB WP shall be
prepared and shall be numbered 998 00. The irst page of the WP shall be the title page consisting
of requirements in 3.4.3.1a. Format and contents of the IPB WP shall be prepared in accordance with
MIL-PRF-38807. The IPB may also be subdivided into SWPs. If the IPB uses SWP, only WP 998 00
shall contain the IPB front matter information.
3.4.3.6 Difference data WP. The difference data WP (when applicable) shall be numbered 999 00. The
irst page of the WP shall be the title page consisting of requirements in 3.4.3.1a. Use, format, and contents
of difference data sheets shall be in accordance with requirements of MIL-STD-38784.
3.5 Technical WP/SWP development. The task development phase of technical manual preparation is critical
because it will relect the arrangement and alignment of the technical information. Based on maintenance
requirements identiied in the Supportability Analysis or approved maintenance plan, all tasks and support data
shall relect end item operation, inspection, fault isolation, and maintenance criteria at the appropriate level(s)
of maintenance. Task analysis is the most appropriate method of establishing a matrix of task requirements
and sequence of task actions. The depth and scope of task analysis depends on hardware sophistication and
the magnitude of effort deined in the Supportability Analysis or approved maintenance plan. Therefore, this
speciication does not designate the speciic technical WP/SWPs to use but instead designates the coverage of
the information. WP/SWP breakdown shall correspond to the level and type of maintenance, tasks to be
performed, etc. The WP/SWP breakdown can vary depending on equipment and maintenance complexities.
a. For example, a technical manual structure of typical technical WPs, with appropriate SWPs
may be as follows:
1. Receiving and Handling WP
(a) Unpacking
(b) Receiving inspection
(c) Handling
(d) Assembly
(e) Checkout
2. Servicing WP
3. Operation WP
(a) Equipment fault isolation and correction
(b) Operator inspection
(c) Operator maintenance and servicing
4. Inspection WP
(a) Periodic and special inspection
(b) Visual inspection
(c) Sampling inspection
(d) Nondestructive inspection
(e) In-process inspection
5. Maintenance WPs
(a) Theory of operation
(b) Preparation for maintenance
(c) Fault isolation (troubleshooting)
(d) Disassembly
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