What information should be included in typical electrical maintenance documentation?

• A. Wiring diagrams, SBs, AMM instructions, part numbers, and logbook entries for the work performed.
• B. Only wiring diagrams.
• C. Only service bulletins.
• D. Only AMM instructions.

Answer: (A)

Comprehensive electrical maintenance documentation must provide all information needed to perform, verify, and prove maintenance on aircraft electrical systems. This includes wiring diagrams to show exact circuits, harness routes, connectors, and interconnections so you can trace and diagnose issues accurately. It also includes service bulletins from manufacturers, which flag known problems and recommended fixes or changes that aren’t in the standard procedures. The maintenance manual instructions (AMM) give the step-by-step procedures, limits, torque values, troubleshooting steps, and safety precautions you must follow. Part numbers ensure you identify and source the exact components or replacements, avoiding substitutions that could affect compatibility or performance. Finally, logbook entries document what was done, who performed it, when, and any measurements or tests, providing traceability for airworthiness and regulatory compliance. Relying on any single type of document leaves gaps—for example, wiring diagrams alone don’t tell you the approved procedures or the latest advisories, and logbook entries alone don’t supply the actual steps or the component identities.