TM 9-4933-223-13&P
13-14. SHOP SET--CEILING MODIFICATION--MAINTENANCE INSTRUCTIONS (cont)
MODIFICATION OF CEILING
Table 3-3.
1 CEILING (1).
a. Drill twelve 0.375-in. (0.953-cm) diameter holes (2) 1.50 in. (3.81 cm) deep, into ceiling from inside of shelter as illustrated.
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