Which publication would you consult for corrosion removal limitations?

• A. The applicable aircraft structural repair manual (SRM) or the Corrosion section of the MIM
• B. NAVAIR 01-1A-509
• C. MIL-S-24521
• D. FAA publications

Answer: (A)

Understanding corrosion removal limits relies on official repair data for the specific aircraft. The aircraft’s structural repair manual (SRM) contains component-specific limits on how much material can be removed when removing corrosion, and it outlines the required inspections and repair criteria to keep the structure safe. If that single source doesn’t cover a particular item, the Corrosion section of the Maintenance Instruction Manual (MIM) provides authoritative corrosion guidance and thickness-loss allowances for various assemblies. These documents are produced by the engineering authority and establish the approved limits you must follow in practice.

Other publications, such as NAVAIR instructions, MIL-S-24521, or FAA publications, may address corrosion in a general sense or cover material specifications, but they don’t typically list the precise removal limits for a given aircraft structure. Therefore, consulting the SRM or the corrosion section of the MIM gives you the official, aircraft-specific limits needed to determine whether removal is acceptable.