7-19. The first position of the EOC code is derived from what source? 7-20. 1. The Work Unit Code manual 2. OPNAVINST 4790.2 3. MESM, OPNAVINST 5442.4 4. Local maintenance instruction When an aircraft is delivered to the Navy, the Aircraft Logbook, OPNAV 4790/19, is initiated by what activity or office? 1. Manufacturer 2. OPNAV 3. Original accepting activity 4. NADEP 7-21. Aircraft logbooks are normally kept in what location? 7-22. 1. In the aircraft 2. In the line shack 3. In the operations office 4. In the maintenance control office What activity generates the Structural Life Limits Form,  OPNAV 4790/142, for the aircraft logbook? 7-23. 1. NADEP 2. NAVAIR 3. The squadron 4. The functional wing The Inspection Record is identified by what OPNAV number? 1. OPNAV 4790/22A 2 . OPNAV 4790/24A 3. OPNAV 4790/26B 4. OPNAV 4790/28A 7-24. The Repair/Rework Record is identified by what OPNAV number? 1. OPNAV 4790/24A 2. OPNAV 4790/23A 3. OPNAV 4790/21A 4. OPNAV 4790/18A TO ANSWER QUESTION 7-25, REFER TO FIGURE 7-7 IN THE TEXT. 7-25. 7-26. 7-27. In figure 7-7, what block is used to document remarks about a technical directive? 1. 2 2: 5 3. 7 4. 8 What type of technical directives are issued in greater numbers and require careful screening to ensure accuracy? 1. PPBs and PPCs 2. AFBs and AFCs 3. SEBs and SECs 4. AVBs and AVCs Which of the following actions requires an entry in the Miscellaneous/History section of an aircraft logbook? 1. The aircraft is damaged in an in-flight mishap 2. The aircraft is exposed to a large quantity of salt water 3. Dye is added directly to the aircraft fuel tanks to determine the location of a leak 4. Each of the above 47