Title
Publication
location; or selecting items that appear de-
fective, will not be used.
TB 750-236
Maintenance - of Army Materiel.
(2) Sample size. Use table I of MIL-
Depot Maintenance Manual: Radar
TM 11-5840-320-50
STD-105D, General Inspection Level II, to
Sets AN/MPQ-10 and AN/MPQ-
obtain the sample size code letter, and table
10A.
II-A of MIL-STD-105D to obtain the sample
Field and Depot Maintenance Man-
TM 11-6625-353-35
size using the storage quality levels shown
AM-1881/U.
in (3) below.
Army Equipment Record Proce-
TM 38-750
(3) Storage quality levels (SQL).
dures.
(a) Mechanical-visual inspection criti
ical SQL 1.0 percent; major SQL 2.5 per-
5. Other Directives.
cent; minor SQL 10 percent.
Title
Publication
Critical SQL 1.0 per-
(b) Electrical:
General Policies and Principles for
AR 795-17. . . .
cent; major SQL 2.5 percent.
Furnishing Army Materiel on a
Grant Aid Basis.
(c) Preservation, packaging, packing,
General Policies and Principles for
and marking: major SQL 4.0 percent; minor
AR 795-204 . . .
Furnishing Defense Articles and
SQL 10 percent.
Services on a Sale or Loan Basis.
(d) The acceptance or reject number
for the above SQL's shall be the same as
6. Inspection Criteria. a. Lot Criteria.
those shown for comparable acceptance qual-
(1) Lot definition. A lot is defined as
ity levels (AQL's) in table II-A of MIL-STD-
a group of like items from which a sample
105D.
is to be drawn and inspected to determine
conformance with the acceptability criteria.
c. Inspection Requirements. The following
The following are examples:
mechanical-visual inspections shall be per-
formed
(a) A group of like items in storage
which were received in a shipment with the
(1) Inspect case for physical damage,
following identical markings:
condition, and finish.
(2) Inspect all controls and switches for
1. Purchase order number.
proper operation and loose or missing hard-
2. Date packaged or packed.
ware.
3. Depot certification stamp and date.
(3) Inspect all connectors, plugs, and
(b) A group of like items repaired `or
rebuilt by the Maintenance Division in one
(4) Inspect assembly for physical dam-
production run.
age, condition missing parts, foreign objects,
(2) Lot formation. The items shall be
and finish.
assembled into identifiable lots.
Each lot
(5) Inspect cabling and wiring for po-
shall, as far as practicable, consist of units
tential short circuits, cuts, breaks, fraying,
of product of a single type, grade, class,
or rebuilt at the same time and stored under
(6) Inspect solder connections for miss-
the same conditions.
ing solder, cold solder, insufficient solder,
excessive solder, and improper wrap.
(3) Lot size. The lot size is the total
number of individual like items in the lot
(7) Inspect for illegible, incorrect, or
that is to be inspected.
missing markings.
b. Sampling Procedure.
(8) Inspect for corrosion dirt, moisture,
and fungus.
(1) Sample selection. Select samples of
materiel in a way which will assure that each
(9) Inspect all parts and hardware for
unit in the lot has an equal chance of being
damage and condition.
selected. Biased methods, such as selecting
items from the same position in a container,
d. Test Requirements. Perform these tests
pallets, or stacks; taking items all from one
that are specified for each amplifier listed
5