What is an OPNAV 4790/51?

The OPNAV 4790/51 serves as the SE Custody and Maintenance History Record. This document is vital for tracking the custody and maintenance history of specific Support Equipment (SE) within the Navy. It is used to ensure proper record-keeping of maintenance actions taken on the equipment, its current status, and any relevant changes in custody.

Accurate records are essential for maintaining operational readiness, as they provide a detailed account of the equipment's maintenance history. This record helps ensure compliance with maintenance schedules and establishes a clear history for accountability, which is crucial in military operations.

The other choices represent different types of documents related to maintenance and operations in naval aviation, but they do not fulfill the specific purpose of the OPNAV 4790/51, which is primarily focused on custody and maintenance tracking.