TB 1-2840-248-20-2
(g) Preparation Instructions For Completion of Copy 3 of a DA Form 2410 For Installation
SECTION IV INSTALLATION/LOSS
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, etc.
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. When the next higher
assembly is a helicopter or airplane, leave this block blank.
Block 44. Serial number (NHA). Enter the serial number of the item in block 41. When the next higher
assembly is a helicopter or airplane, 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 item in block 41 is a component, enter the component operating 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. Obtain the total cumulative counts from line 1 of the DA Form 2408-16-1 for the item entered in
block 41. 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. If a helicopter is entered in
block 41, enter the engine history recorder reading in this block.
Block 48. Acft model. Enter the aircraft MDS if installation was on the aircraft. Leave blank if the item in
block 41 was an engine, component, or module.
Block 49. EIC. Enter the end item code for the aircraft or simulator listed in block 41, (See appendix D of DA
Pamphlet 738-751).
Block 50. Acft S/N. Enter the aircraft serial number. Leave blank if the reportable item is installed on an
engine, component, or module.
Block 51 Maint level. Enter the level of the maintenance unit performing the action. ("0" for AVUM, "F" for
AVIM, or "D" for depot.)
Block 52. Date installed. Enter the julian date that the reportable item was installed.
Block 53. UIC (this action). Enter the unit identification code of the organization doing the installation. If a
contractor, enter the CAGE code prefixed with a "K."
Block 54. Manhrs (to install). Enter the manhours in hours and tenths that it took to install the item in block
1.
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