AB-513, Repair Alteration Requirements - ABSA

the pressure equipment safety authority
8.4 Preparation of the Work Scope
Information that may need to be defined in the work scope that the owner provides to
the repair organization includes, but is not limited to: base metal cleaning and other
preparation requirements such as degassing (bake out), welding requirements,
material specifications and material testing requirements, heat treatment,
NDE and reports that define the extent of damage, any pressure test or pressure
tightness test requirements, coating requirements, the Inspector responsible for
inspection (Alberta in-service inspector or ABSA SCO) and the Inspector s hold and
inspection points.
8.5 Preparation of Repair and Alteration Procedures (Methods, Strategies)
The repair organization shall prepare a procedure and supporting documentation for
each item to be repaired or altered. This shall meet the owner s requirements (work
scope), describe the step-by-step method to be used, and provide all the information
needed to ensure the repaired or altered item is safe for operation at the approved
design conditions. The construction codes (refer to section 5 of this document), PCC-
2, API 510, API 570, API 577, NBIC and other applicable good engineering
standards, provide detailed information that may need to be considered.
Applicable information that must be clearly defined in the repair or alteration
procedure or supporting documents (design drawings, specifications, data reports,
sketches, etc.) includes but is not limited to: weld joint designs and dimensions, weld
sizes, the welding procedure specifications that are to be used for each specific weld
joint and any special welding considerations, material specifications and material
testing requirements, NDE requirements, preheat requirements, postweld heat
treatment (PWHT), any pressure testing requirements and any additional information
designated by the owner. (Section 8.4 covers information that may need to be
provided by the owner). For alterations, additional design information and calculations
may be required for procedure registration purposes per 8.6.
The Alberta repair and alteration report form, AB-40, is used to document the
completion of a welded repair or alteration to a boiler or pressure vessel. This form
does not need to be included in a package that is submitted to ABSA for registration.
However, for a simple boiler or pressure vessel repair, such as a basic repair to public
occupancy equipment, the front of the AB-40 form, supplemented as required by a
drawing or sketch showing the weld details and other required information, may
provide enough detail to describe the repair or alteration procedure.
Some owners have developed standard procedures and strategies for typical repairs.
These can provide excellent control methods for ensuring that all applicable factors
are taken into consideration when preparing the item-specific repair plan. However,
Issued 2012-12-13 AB-513 Edition 2, Rev 1 Page 14 of 26