TB 9-2300-358-24
(27) Block 20, column d. Enter noun identifying the part or assembly under warranty.
(28) Block 20, column e. Enter serial number of the part or assembly under warranty.
(29) Block 20, column g. Enter the number of man-hours required for the task of replacing the
defective supplies, using the Maintenance Allocation Chart (MAC) in TM 9-2320-358-24&P or TM
9-2320-272-20-2 as a guide.
(30) Block 20, column h. Enter NSN of the defective part, or manufacturer's part number when NSN
has not been assigned.
(31) Block 20, columns i, j and k. Self-explanatory.
(32) Block 20. column 1. Leave blank.
(33) Block 20, column m. Multiply the value of block 20,1 times twenty-five dollars () and enter
the product in block 20, column m.
(34) Block 20, column n. Self-explanatory.
(35) Block 23. Enter signature of the individual authorized to submit DA Form 2407.
(38) Blocks 24-28. Leave blank.
(37) Utilizing the available blank columns in block 20, enter the following information:
(a) Enter the NSN of the defective component, part or assembly.
(b) Enter nomenclature of the defective component, part or assembly.
(c) Enter the date of failure.
(d) Enter the complete telephone number (AUTOVON/commercial with area code) of the
originator. State in clear terms all factors which contributed to the failure. Include type of
operation, terrain and climatic conditions. Clearly state an opinion as to cause of failure. If
additional space is needed, use a continuation sheet, DA Form 2407-1. Sketches and
photographs should be attached when needed to fully explain the condition, equipment
failure or other basis for warranty submission. Include manufacturer's name and con-
tract/order number if available. In addition, include date the part failed; the contract number
and date warranty period began; USA registration number of the end item, if applicable;
complete accounting classification for unit to be credited for cost of labor expended; the
MIL-STRIP document number and supplementary address of the unit which is to receive
disposition instructions and notice of favorable claim actions.
A-3
