What is defined as a written request to repair or alter a boiler?

The concept of a written request to repair or alter a boiler is most accurately described by the term "preliminary order." This term typically refers to an official request or directive that initiates the process for maintenance or repairs needed for a boiler system. It establishes a formal communication channel between the requestor and the service entity, outlining the specific alterations or repairs that are required. This document functions as an important part of the regulatory and safety protocols surrounding boiler operations, ensuring that any modifications or repairs are formally documented and proceed under the appropriate guidelines and standards.

In contrast, inspection reports typically provide feedback on the condition of a boiler without explicitly requesting repairs or alterations. Service requests might be more general and could apply to various types of maintenance or assistive actions rather than specifically legal or regulatory alterations. Maintenance orders are often more related to routine upkeep rather than specifying changes or repairs prompted by an inspection or notice.