Role of the competent person
The role of a competent person is to supervise, inspect and certify, through signing off the major inspection of the MEWP, that it has been completed and can be returned to service. As all the work may not be conducted by the competent person then they must:
- Ensuring any work done on the MEWP is consistent with the manufacturer's instructions;
- Ensuring that any persons conducting work on the MEWP are competent;
- Observing the inspection and repair processes to ensure they are consistent with recognised industry standards;
- Recommending if any components will require replacement prior to the next major inspection; and
- Specifying the level of Non-Destructive Testing (NDT) by determining the systems to be used;
determining the number of welds, castings, pins, forgings, and machined areas that need to be tested; ensuring any system used complies with a recognised technical standard; ensuring that the person conducting the NDT are accredited or have been formally trained.
Examinations can be done by various forms of (NDT) to identify any form of critical damage incurred by fatigue or excessive stress. These include but are not limited to visual, magnetic particle, dye penetrant, x-ray eddy current, and ultrasound. A competent person must sign the final certification, identifying and certifying that the MEWP has undergone a major inspection and that it can be returned to service. How involved with the inspection a competent person undertakes largely depends on how confident they are with the competence of the persons who have been engaged to conduct specific testing and inspection procedures. A competent person will need to physically inspect the MEWP at times in addition to relying on inspection reports provided. WorkSafe will require evidence that a competent person has followed a reasonable process in order to certify the major inspection. If the competent person can reasonably presume that the work has been done properly then they can sign off the major inspection. For example, NDT performed by an accredited organisation or a formally trained person and the technical report provided, that states the testing has been done to a recognised standard.