MIL-PRF-62439B(AT)
specified (see 6.2), endurance and reliability test will be conducted on preproduction samples, as
specified in 6.2. Samples undergoing endurance and reliability testing shall not be subjected to
environmental tests of 4.5.4.1 through 4.5.4.9.
4.3.2 Initial production inspection. Unless otherwise specified (see 6.2), the Government
shall select two assemblies of the first ten assemblies produced under the production contract for
initial production inspection. Initial production units shall be inspected in the order listed and as
specified in table II.
TABLE II. Classification of inspections.
Conformance
First
Exami-
Title
Requirement
Inspection
Tests
article
nation
Materials and construction
3.2, 3.2.1,
4.5.1
X
X
X
3.2.2 and 3.3.1
Defects (see 4.5.2 and table III) 3.3 thru 3.3.3, 4.5.2
X
X
and 3.7
Minimum fuel flow
3.4.1
4.5.3.1
X
X
Backup valve operation
3.4.2
4.5.3.2
X
X
Maximum fuel flow
3.4.3
4.5.3.3
X
X
High pressure relieve valve
3.4.4
4.5.3.4
X
X
operation
Fuel flow schedule
3.4.5
4.5.3.5
X
X
Cutoff valve and check valve
3.4.6
4.5.3.6
X
X
operation
PTS feedback voltage output
3.4.7
4.5.3.7
X
X
IGV feedback voltage output
3.4.8
4.5.3.8
X
X
PTS actuator flow
3.4.9
4.5.3.9
X
X
IGV actuator flow
3.4.10
4.5.3.10
X
X
Pressure resistance
3.4.11
4.5.3.11
X
X
High temperature
3.5.1
4.5.4.1
X
Low temperature
3.5.2
4.5.4.2
X
Gun firing shock resistance
3.5.3
4.5.4.3
X
Ballistic shock resistance
3.5.4
4.5.4.4
X 1/
Basic shock resistance
3.5.5
4.5.4.5
X
Vibration resistance
3.5.6
4.5.4.6
X
Submergence
3.5.7
4.5.4.7
X
Sand and dust
3.5.8
4.5.4.8
X
Fungus
3.5.9
4.5.4.9
X
Electromagnetic interference
3.5.10
4.5.4.10
X 1/
and compatibility
Endurance
3.6.1
4.5.4.11.1
X 2/
Reliability
3.6.2
4.5.4.11.2
X 2/
1/ Preproduction only.
2/ Samples shall not be subjected to tests 4.5.4.1 through 4.5.4.9.
9
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