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Monthly Flight Summary (OPNAV 1790/21A)
MISCELLANEOUS/HISTORY, OPNAV 4790/25A

Aviation Maintenance Ratings - Aviation theories and other practices
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of all repair, reconditioning, scheduled depot-level maintenance (SDLM), conversion, modification, modernization, and aircraft service period adjustment (ASPA) inspections performed on the aircraft. The logbook always accompanies the aircraft when it is inducted into a rework facility, even though there is no change in the reporting custodian. TECHNICAL DIRECTIVES, OPNAV 4790/24A OPNAV 4790/24A (fig. 7-7) is used in both the aircraft logbook and the AESR, and is used to document the technical directives (TDs) affecting the airframe structure and its integral parts. Separate pages are required to record each type of TD on equipment. TDs concerning equipment other than engines present no special problems in recording because the quantity of these TDs is relatively small. Power plant changes (PPCs) and power plant bulletins (PPBs), however, are issued in greater numbers and require careful screening to ensure the AESR reflects the actual configuration of the equipment. Technical directive requirements lists require different recordkeeping procedures. The Naval Aviation Logistics Center (NAVAV- NLOGCEN) prepares technical directive requirements lists that include list No. 02, Directives Applicable to a Specific Bureau/Serial Number (but not incorporated), and list No. 04, Directives Applicable to a Specific Bureau/Serial Number (and reported as incorporated). The NAVAVNLOGCEN distributes these lists to reporting custodians and functional wings according to NAVAIRINST 13050.3 (series). When you receive initial lists Nos. 02 and 04, remove OPNAV Form 4790/24A. After verification against the new lists Nos. 02 and 04, retain or destroy the old form as directed. Insert list No. 02 and list No. 04 in the TD section of the aircraft logbook. List No. 02 precedes list No. 04. When a new TD is received, add it to list No. 02. As the work center complies with each TD, annotate list No. 02 and add the information to list No. 04. This provides a complete, up-to-date configuration listing of the aircraft at any given time. Figure 7-6.—Repair/Rework Record (OPNAV 4790/23A). 7-9







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