TB 1-2840-248-20-2
(m) Preparation Instructions For Completion of Copy 3 of DA Form 2410 When a
Serviceable Reportable Item is Removed For Controlled Exchange. (Installation Data).
SECTION IV INSTALLATION/LOSS
NOTE: Block 7 on Copy 3 must be updated.
Block 41. Installed on (nomen NHA). Enter the name of the next higher assembly on which the reportable
item is installed, for example, engine, cold section module, and so on.
Block 42. NSN (NHA). Enter the national stock number of the item in block 41.
Block 43. Part number (NHA). Enter the part number of the item listed in block 41. If block 41 is an aircraft
leave this block blank.
Block 44. Serial number (NHA). Enter the serial number of the item in block 41. If the item in block 41 is an
aircraft leave this block blank.
Block 45. Hours (NHA). Enter the current aircraft hours to the nearest hour if the item in block 41 is an
aircraft. If the item in block 41 is a component/module, enter the component/module operation hours, to the
nearest hour since new or rebuild.
Block 46. History recorder S/N. Enter the history recorder serial number. If a module or component is
entered in block 41 leave this block blank.
Block 47. History recorder/hour meter readings. Enter the total cumulative counts for the item entered in
block 41. Calculate the total cumulative counts using the DA Form 2408-16-1 for the item entered in block 41.
If the helicopter is entered in block 41, enter the engine history recorder reading in this block. This entry is
required for engines, history recorders, and all modules, components and subcomponents entered on the front
and reverse sides of a DA Form 2408-16-1.
Block 48. Acft model. Enter AH-64A, UH-60A, etc., if installation was on the aircraft. Leave blank if block
41 is other than an aircraft.
Block 49. EIC. Enter the end item code of the aircraft (See appendix D of DA Pamphlet 738-751). Leave
blank if block 41 is other than an aircraft.
Block 50. Acft S/N. Enter the serial number of aircraft. Leave blank if block 41 is other than an aircraft.
Block 51. Maint level. Enter the maintenance level of the unit/activity performing the action. ("O" for
AVUM, "F" for AVIM, or "D" for depot.)
Block 52. Date installed. Enter the julian date that the reportable item was installed.
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