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d. Pipe and Tubing - Material, size, and schedule or thickness.
e. Pressure Vessels :
(1) Drawings or specifications that as a minimum specify :
(a) MAWP
(b) Material thickness'
(c) Material specifications
(d) Head and shell geometry
(e) Weld joint geometry
(2) Serial number or unique identifying number.
Pressure Vessel Certification Appendix 3
Edition 5.2 A3.3
(3) Certification Tests
(a) Pressure Vessels :
All pressure vessels require proof-pressure testing.
Hydrostatic testing at 1.5 MAWP is the preferred method.
Pneumostatic testing at 1.25 MAWP may be performed,
except on DOT vessels, which must be hydrostatically tested.
(b) Relief Valves :
All relief valves require set-pressure testing. In no case should
the set pressure of the relief valve exceed the MAWP of the
system.
(c) Flex Hoses :
All flex hoses require proof-pressure testing. The only
acceptable method of testing flex hoses is a hydrostatic test at
1.5 MAWP.
(d) System Piping :
All system piping requires proof-pressure testing. Hydrostatic
testing at 1.5 MAWP is the preferred method of
accomplishing this test. Pneumostatic testing at 1.25 MAWP
may be performed.
Note : Certification tests must be witnessed by an independent quality
assurance representative and adequate documentation must be provided.
Edition 5.2 A4.1
Pre-Shipment Appendix 4
Checklist
This checklist is intended as a final, pre-shipment equipment checklist. However, this
checklist, although useful during packing preparations, does not replace the safety
requirements outlined in this document.
A. General
Has the flight equipment been identified ? Has the ground equipment been identified ?
Have the flight procedures been prepared ?
Have the contingency flight procedures been prepared (power failure, computer failure,
need for spare batteries, etc.) ?
Have the operational limits been defined ?
Has the detailed structural analysis been performed (take off and landing configuration,
free-floating test article configuration) ?
Has the electrical load analysis been performed ?
Is the general workmanship satisfactory (screws and bolts secure, wiring secure, cable
routing convenient and safe, components secure on baseplates) ?
Pre-Shipment Checklist Appendix 4
Edition 5.2 A4.2
B. Human Factors
Have all of the corners, edges, and protrusions been padded ?
Are all surface temperatures below 113° F or 40° C?
Are all rotating components contained ?
Are all electrical connections covered ?
Are there adequate handholds ?
C. Electrical system
Are all the cables and connections labeled ?
Are all cables adequately restrained or clamped ?
Are the cables of adequate length ?
Do the cables have adequate strain relief ?
Are protection devices (circuit breakers and fuses) provided for each piece of
equipment ?
Are all components labeled ?
Are the high voltage sources protected and marked with warning labels ?
Is the equipment properly grounded ?
Pre-Shipment Checklist Appendix 4
Edition 5.2 A4.3
Are the batteries of the proper type (dry or gel cell only - no liquid electrolyte or
Lithium) ?
Is all insulation properly protected against abrasion ?
D. Lasers
Are the type, manufacturer, peak power, pulse length, voltage requirement, and mode of
operation documented ?
Are interlocks provided ?
Are they marked with warning labels ?
E. RF Systems
Has an EMC test been conducted ?
F. Pressure Systems
Are the design pressure and MAWP specified ?
Is the system guarded against any component inadvertently increasing MAWP ?
Does the system have over-pressure protection (automatic controls, relief valves) ?
Is the certification still valid ? Is the following relief device information included :
set pressure ?
manufacturer ?
model number ?
component number ?
Pre-Shipment Checklist Appendix 4
Edition 5.2 A4.4
Are the relief devices tagged with the set pressure ?
Is the following information included for other components such as valves, regulators,
filters, etc.
manufacturer ?
model number ?
pressure rating ?
component number ?
Have the regulator gauges been certified and tagged or labeled ?
Have the pressure gauges been certified and tagged or labeled ?
Has proof testing been performed for the following components :
pressure vessels ?
flex hoses ?
piping system ?
relief valves ?
Has proof testing been performed for the fully configured system ?
G. Vacuum system
Are the drawings included ?
Is the system equipped with relief devices (positive or negative relief valves) ?
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