Post MaintananceTesting

D OE-STD -1065-94

3.4

POST MAINTENANCE TESTING

3.4.1

Guidelines

3.4.1.1

A satisfactory test is one that verifies; the ability of a particular

SSC to perform its intended function, the original deficiency has

been corrected, and no new or related problems have been

created by the maintenance activity. All MJRs should be

reviewed to determine the need for Documented PMT.

3.4.1.2

PMT should be performed following all corrective maintenance

activities. In addition, testing should be done following

preventive maintenance and troubleshooting activities that might

have affected normal functioning of the SSC. Tests should

usually be conducted under conditions that represent normal

operating parameters, such as flow, differential pressure,

temperature, input signal values, and fluid type.

3.4.1.3

Tests should be conducted in accordance with written

instructions or formal procedures, as appropriate. The

instruction/procedures should measure performance versus

criteria on key parameters and allow for documentation and

review of test data for the SSC. An example PMT Control

form and PMT Test Data Sheet are shown in Appendices A

and B respectively. The results should be documented and filed

with the MJR or cross-referenced by the MJR to the applicable

document.

3.4.1.4

The following are some examples of types of maintenance

activities where PMT may be of value:

maintenance that affects the integrity or operation of a

fluid or gas system, or components within those systems

maintenance that affects the wall thickness of pressure

boundaries or affects mechanical strength of components

or fittings

maintenance that affects electrical distribution equipment,

such as breakers, bus work, or high-voltage connections