IV. MAINTENANCE PROCEDURES USE
A. Maintenance Procedures and Documentation
1. Performance Standard
Maintenance procedures and documents are clear and technically accurate, provide appropriate direction, and are used to support safe and reliable plant operation. Procedures must be current to the actual methods being employed to accomplish the task and are comprehensive to ensure reliable energy delivery to the transmission grid
2. Assessment Guidelines
A. The preparation, review, approval, and revision of procedures and documents are properly controlled and timely.
B. Documents used in lieu of procedures, such as excerpts from vendor manuals, receive sufficient review and approval to verify accuracy needed to support the intended use.
C. New and revised procedures are reviewed for technical accuracy prior to initial use and are verified and validated for correctness and usability prior to/or during initial use.
D. Procedures are clear and concise and contain sufficient information for users to understand and perform activities effectively. Necessary elements include the following:
1. Technical details such as setpoints, tolerences, control logic, and equipment numbers are correct and consistent among procedures, drawings, valve lineup sheets, and system descriptions.
2. Procedures specify portions or steps of other documents that are to be referenced or used when a procedure is performed.
3. Human factor considerations, such as the sequence of procedure steps and the placement of notes and caution statements, are incorporated into procedures to reduce the likelihood of error.
4. The level of detail in procedures is consistent with the training and qualification of the users.
5. Maintenance procedures and documents should include the generation equipment and all those components owned by the generation owner directly connected to the plant that are an integral part of delivering power to the grid including fuel supply systems, electrical switchyards, transmissions lines, penstocks, flumes, exhaust system, etc.
E. Hold points, such as quality checks, are included in procedures as needed.
F. A policy governing the use of procedures is implemented. The policy includes the following:
1. Directions for when procedures are to be used as general guidance, followed step-by-step, or signed off for each step
2. Directions for when a procedure must be physically at the job site
3. Actions to be taken when procedures conflict or are inadequate for the intended task or when unexpected results occur
4. Actions to be taken when a procedure activity is interrupted
G. Temporary changes to procedures, if used, are controlled, including the following:
1. Appropriate review and authorization prior to use
2. User awareness of applicable temporary changes
3. Timely incorporation into permanent revisions, when appropriate
H. Procedures, documents, drawings, and other work-related references are readily accessible, authorized, clearly identified, controlled, technically accurate, and up to date.
I. Maintenance instructional aids reflect procedure guidance.
J. Procedures are periodically reviewed for technical accuracy, human factors, considerations, and inclusion of lessons learned from operating experience.
K. Procedure users are encouraged to provide feedback to procedure writers to identify such items as inaccuracies, difficulties in use, and suggestions for improvement.
B. Conduct of Maintenance
1. Performance Standard
Maintenance is conducted in an effective and efficient manner so equipment performance and materiel condition effectively support reliable plant operation.
2. Assessment Guidelines
A. Personnel exhibit professionalism and competence in performing assigned tasks that consistently result in quality workmanship.
B. Maintenance is performed by or under the direct supervision of personnel who have completed applicable qualification for the tasks to be performed.
C. Personnel seek appropriate guidance before proceeding when uncertainties or unexpected conditions arise.
D. Maintenance personnel accurately transfer pertinent information during turnovers.
E. Personnel identify and pursue corrective action for human performance and plant deficiencies with a goal of maintaining equipment performance and materiel condition to support safe and reliable plant operation.
F. Maintenance work is properly authorized, controlled, and documented. Documentation includes sufficient details of as-found and as-left conditions of the equipment and work performed.
G. Work activities are performed in accordance with controlled procedures, instructions, and drawings. These documents provide appropriate instruction and details, are technically accurate, and are consistently used to perform maintenance in a safe, correct, and efficient manner. Craft and other maintenance personnel identify and provide timely feedback to correct procedure problems.
H. Effective maintenance practices are followed.
I. Post-maintenance testing and post-modification testing are performed, results are reviewed, and corrective actions are taken as necessary before equipment is released for service.
J. Maintenance rework is identified, documented, and trended. Actions to determine causes and corrective actions to prevent recurrence, including periodic reviews for generic implications and trends, are taken to reduce rework.
