This looks like it would be a repair according to the 2018 IEBC. If they are not working on the Pool Barrier no inspection of it is required per IEBC.
2018 ISPS has this about existing swimming pools, it looks like the pool barrier has to comply with the code that was used when it was first built.
[A] 102.2 Existing Installations
Any pool or spa and related mechanical, electrical and plumbing systems lawfully in existence at the time of the adoption of this code shall be permitted to have their use and maintenance continued if the use, maintenance or repair is in accordance with the original design and no hazard to life, health or property is created.
[A] 102.3 Maintenance
Pools and spas and related mechanical, electrical and plumbing systems, both existing and new, and parts thereof, shall be maintained in proper operating condition in accordance with the original design in a safe and sanitary condition. Devices or safeguards that are required by this code shall be maintained in compliance with the edition of the code under which they were installed.
The owner or the owner's authorized agent shall be responsible for maintenance of systems. To determine compliance with this provision, the code official shall have the authority to require any system to be reinspected.
[A] 102.4 Additions, Alterations or Repairs
Additions, alterations, renovations or repairs to any pool, spa or related system shall conform to that required for a new system without requiring the existing systems to comply with the requirements of this code. Additions, alterations or repairs shall not cause existing systems to become unsafe, insanitary or overloaded.
Minor additions, alterations, renovations and repairs to existing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved.
If the IFC is used there, I am not aware of anything about this is in it. Of course, there may be local ordinances that are stricter.