TM 5-1420-367-14
TM 5-3610-259-14
Table 1-4. ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES
B - Before
D - During
A - After
W - Weekly
AN - Annually
M - Monthly
S
(Number) - Hundreds of Hours
- Semiannually
Q - Quarterly
BI - Biennially
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