If there is a discrepancy between repair data and what is installed on the aircraft, what should the IA require?

If there is a discrepancy between repair data and what is installed on the aircraft, what should the IA require?

• A. Proceed with the repair using the installed data.
• B. Sign off when differences are minor.
• C. Reinstall the repaired components regardless.
• D. Corrective action per approved data; do not sign off until the discrepancy is resolved.

Answer: (D)

The key idea is that any mismatch between the repair data and what’s installed must be resolved by taking corrective action exactly as defined by the approved data, and you cannot sign off until that discrepancy is addressed. The repair data is the authoritative instruction for how a repair or alteration must be done; if the installed components or methods don’t match that data, there’s no safe or compliant basis to release the aircraft. You should verify you’re using the current, approved data and then perform any required corrective actions—such as rework, replacement, or updates to the documentation—so the installation conforms. Only after the discrepancy is resolved and the installation meets the approved data can you proceed to sign off.

The key idea is that any mismatch between the repair data and what’s installed must be resolved by taking corrective action exactly as defined by the approved data, and you cannot sign off until that discrepancy is addressed. The repair data is the authoritative instruction for how a repair or alteration must be done; if the installed components or methods don’t match that data, there’s no safe or compliant basis to release the aircraft. You should verify you’re using the current, approved data and then perform any required corrective actions—such as rework, replacement, or updates to the documentation—so the installation conforms. Only after the discrepancy is resolved and the installation meets the approved data can you proceed to sign off.