MIL-DTL-62542C
4.4 Conformance inspection. When specified (see 6.2), conformance inspection shall be
conducted by the contractor. Noncompliance with any of the specified requirements in sections 3
and 5 shall be cause for rejection of the item.
4.4.1 One hundred percent (100%) final inspection/examination. Each BSLA produced
shall be subjected to one complete final inspection by the contractor as specified in 4.5.
Conformance inspection shall be conducted at a site selected by the contractor.
4.5 Verification methods. The types of verification methods included in this section are
visual inspection, measurement, sample tests, full-scale demonstration tests, simulation, modeling,
engineering evaluation, component properties analysis, and similarity to previously-approved or
previously-qualified designs.
4.5.1 Verification alternatives. The manufacturer may propose alternative test methods,
techniques, or equipment, including the application of statistical process control, tool control, or
cost-effective sampling procedures, to verify performance. See the contract for alternatives that
replace verifications required by the specification.
4.5.2 Operating requirements verification.
4.5.2.1 Drive motor. Each drive motor shall be operated for not less than 20 seconds in
forward and 20 seconds in reverse direction.
4.5.2.2 Current draw. The current draw shall be measured under a 52 000 lb
(231 308 N) load at ambient room temperature.
4.5.2.3 Thermal overload protection. The thermal overload protection device shall be
checked for malfunctions. A test shall be performed on the drive motor which shall cause the
thermal device to open in accordance with its design. Failure of the switch or device to trip
before drive motor damage occurs shall be cause for rejection.
4.5.2.4 Dynamic load. The BSLA shall be cycled three times at a 52 000 lb load, at the
10 in. (25.4 cm), 15 in. (38 cm), and 25 in. (63.5 cm) position along the screw.
4.5.2.5 Static load. The BSLA shall be subjected to a 105 600 lb tensile load. Structural
and operating integrity shall not be degraded as determined by a visual inspection and two cycle
operation. However, failure of the slip clutch to drive the BSLA will not be cause for rejection.
4.5.2.6 Reverse drive. The BSLA shall be held for ten seconds when subjected to a
52 000 lb tensile load. The BSLA shall not reverse drive at the specified load.
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