SB 742-1370-12
reports and records, are contained in SB 742-1.
a. Burning time (to the nearest tenth of a
second) of tracer from ignition until extinction (estimate
2.
Errors,
omissions
and
recommended
burning time on the ground, if any).
changes. Direct reporting of errors, omissions and
b. Burning time (to the nearest tenth of a
recommendations for improving this bulletin is authorized
second) of each star in air.*
and encouraged.
DA Form 2028 (Recommended
c. Time interval (-) or overlap (+) between the
Changes to Publications) will be completed and
extinction of the tracer and the ignition of the first star.
forwarded to Director, U.S. Army Materiel Systems
d. Light intensity of star (good, fair, or poor).
Analysis Agency, ATTN: AMXSY-RW, Aberdeen Proving
*e. Maximum altitude to the nearest foot
Ground, MD 21005.
reached by the lowest component of the signal, i.e.,
3.
Safety. The surveillance function testing must
tracer or either star. (In any instance in which the case is
be conducted in accordance with the provisions set forth
projected, the altitude reached by either the signal case
in appropriate safety regulations and implementing
or component, whichever is lower should be recorded).
instructions, with special attention devoted to technical
APE 1908 should be used for this purpose.
manuals describing the item.
f.
All instances of any of the following:
4.
Size of sample. The number of signals required
(1) Nonstandard marking.
State whether
to make up a representative sample from a lot for a
misleading, incomplete, or unidentifiable.
surveillance function test is as follows:
(2) Rust or corrosion. Give location and extent.
(3) The occurrence of any of the nonstandard
For check investigation ...........................as directed
conditions or malfunctions classified as defects in
For classification investigation.................40
paragraphs 10 and 11 below.
For confirmation investigation .................as directed
(4) The occurrence of any nonstandard
conditions or malfunctions not classified as defects in
5.
Sample selection.
Sample signals will be
paragraphs 10 and 11 below, but which in the opinion of
selected in accordance with the provisions of SB 742-1
responsible personnel merits consideration.
with the exception that not more than ten signals may be
selected from any one box.
9.
Classification of defects. Defects observed
6.
Preparation for test. a. Number the signals 1
during inspection and testing will be classified in
through 40 and identify them as to the box from which
they were drawn.
742-1. Any defects observed which are not listed in
b. Immerse signals 1 through 20 with their
paragraphs 10 and 11 will be fully described and
lead foil bags, if present, in water at 700 10F for two
reported
with
the
inspector's
hours. Position signals horizontally 6 to 9 inches below
recommendation as to classification.
the water surface. APE 1901 should be used for this
Nonfunctioning defects. a. Major.
10.
purpose. Signals will be wiped dry and tested as outlined
(1) Major damage to components, such as:
in paragraph 7 below within two hours after removal front
(a) Case bulged.
the water.
(b) Case split.
c. Signals 21 through 40 will receive no
(c) Case otherwise damaged.
treatment prior to testing.
(2) Closing cap loose to the extent that it can
7.
Test procedure. The signals will be fired from a
be removed by applying light finger pressure.
pyrotechnic pistol AN-M8 mounted in a vertical position
(3) Major rust.
on Holding Device APE 1902. Signals will not be fired
(4) Major corrosion.
when the wind velocity exceeds 15 mph. Signals with
b.
Minor.
bulged, split, or otherwise damaged cases will not be
(1) Improper marking.
fired but will be reported by type of defect as outlined in
(2) Illegible marking.
paragraph 10 below.
(3) Load foil bag (if so packed) or signal
8.
Observations. All observations of nonstandard
not properly sealed (punctured,
conditions and malfunctions, especially those not
cracked foil bag, loose closing cap,
etc.).
11 below, should be described in full detail. Pictorial
(4) Minor rust.
evidence of nonstandard conditions, whenever pertinent
(5) Minor corrosion.
and practical should be included. The observations to be
recorded
are
as
follows:
*These may be used from aircraft or by ground forces, hence time above ground only is considered. Stars which
hit the ground burning should be noted for "information only."
2