TB 1-2840-248-20-2
12. Historical counts at last depot repair.
a. The purpose of these blocks is to determine what the cumulative counts on the subcomponents were
when the subcomponents were installed on the component or module and the total cumulative counts on the
module or component at the time of subcomponent installation.
b. When this form is prepared for the engine, LCF-1, LCF-2, and T/TI counts will not be entered for
modules or components that do not have a separate DA Form 2408-16-1. Operating hours only will be entered
for components and modules not having a separate DA Form 2408-16-1.
c. Two entries will be made in each block. One entry at the top of the block and one entry at the bottom of
the block. The total cumulative counts for the engine at the time of component or module installation will be
entered in the top portion of this block. The total cumulative counts for each component or module at the time
of installation on the engine will be entered in the bottom portion of each block.
13. Replacement due (Hist rcdr hr).
a. If the subcomponent has an established MAOT, leave this block blank. The replacement due will be
calculated when the module or component is installed on an engine.
b. If the item in block 8 is a condition change component enter "COND" in this block.
14. SIGNIFICANT HISTORICAL DATA. Enter any significant historical data on engines, components,
modules and parts. Before you enter the data, enter the date of your entry. After you enter the historical data,
enter your name, organization, and location. If you need more space, use a DA Form 2408-15 as a
continuation sheet. Print "DA Form 2408-16-1 Continuation" in the top margin of the form and complete the
form heading with the engine or module information. The following are examples of significant historical data:
Crash damage, contamination, hot starts, over torques, overspeeds, salt water immersion, and overhaul/major
repair.
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