Table 4-3.-Instructions for Filling Out Oil Analysis Request, DD Form 2026Continued
10. HOURS/MILES SINCE OIL CHANGE. Enter hours/miles since oil change on system being
sampled to the nearest whole hour/mile.
NOTE: Accurate data on Hours/Miles Since Overhaul and Hours/Miles Since Oil Change are
extremely important for correct evaluation of the analysis results. Every effort possible must be made
to ensure that these data are correct.
11. REASON FOR SAMPLE. Enter reason for taking sample. Place an X in applicable block,
if Other block is Xed, specify reason for sample, e.g., Initial Sample, warning light, etc.
12. OIL ADDED SINCE LAST SAMPLE. As directed by applicable weapons systems T.O./T.M.
or higher command, enter quantity of oil added since last sample and specify measurement to nearest
whole number in pints, quarts or gallons.
13. ACTION TAKEN. Enter corrective maintenance accomplished to remedy a known or suspected
discrepancy, e.g., equipment checkedno repair required, removed and replaced, etc.
NOTE: Action Taken, Discrepant Item, How Malfunction and How Found blocks will be
completed only whenever maintenance actions/failures are reported which are related to oil lubricated
14. DISCREPANT ITEM. Enter nomenclature of major component and subassembly which has
malfunctioned, e.g., Engine-No. 2 Bearing, Gearbox-accessory drive bearing, etc., or system which
is examined for discrepancy, e.g., basic engine, CSD, Gearbox, etc. Only one major discrepancy will
be reported per failure, e.g., an engine which has several discrepancies such as No. 1 bearing failure,
No. 2 bearing scored and loose tab washer, will be reported as Engine-No. 1 bearing failure, which
in this case is the most severe discrepancy, No. 2 bearing scored and loose tab washer may be reported
as additional discrepancies in Remarks block.
15. HOW MALFUNCTIONED. Enter description of defect related to item identified in
Discrepant Item block, e.g., worn beyond limits, no defects, defects unknown, etc. The suspected cause
of the discrepancy may be reflected in Remarks block.
16. HOW FOUND. Enter an X in the appropriate block indicating how the necessity for
maintenance action was determined. If other, specify.
17. HOW TAKEN. Check the appropriate block. (Applies to Army and Navy only.)
18. REMARKS. On initial samples note any changes in equipment status and provide the
JOAP laboratory with the following information:
a. Engine position (when applicable).
b. System oil capacity.
c. Oil change interval.
d. Sampling interval.
NOTE: All entries (TO through REMARKS) must be completely filled out as specified.
KEYPUNCH CODES must be entered where required.
19. SAMPLE NO. A sample identification number maybe assigned by the activity NOAP monitor
to facilitate follow-up action if required. The first digit of the sample number will be a monthly designator
identified as follows:
a. The monthly reporting period will be the first through the last day of each month. The
second part of the sample number will be composed of four numerical digits and will follow the
monthly designator. Sequence numbers will be assigned in ascending order, e.g., 234th sample
submitted in Feb will be reflected as sample number 2-0234.