What constitutes 'approved data' for maintenance actions?

What constitutes 'approved data' for maintenance actions?

• A. Data from internet forums.
• B. Manufacturer’s instructions, FAA-approved engineering data, or other FAA-approved sources governing the alteration or repair.
• C. Advertising materials from a supplier.
• D. Data from hobbyist newsletters.

Answer: (B)

Approved data are the official instructions and engineering data that have been reviewed and approved by the FAA or the aircraft manufacturer for the specific alteration or repair. They include the manufacturer's maintenance manuals, instructions for continued airworthiness, and FAA-approved service bulletins or engineering data. Using data from internet forums, supplier advertising, or hobbyist newsletters isn’t approved and may be inaccurate or inappropriate for your exact aircraft, which can lead to unsafe maintenance or regulatory violations. Therefore, maintenance actions must be performed strictly according to these FAA-approved sources, and if no approved data exist for a given action, you must obtain and rely on data that are approved for that purpose.

Approved data are the official instructions and engineering data that have been reviewed and approved by the FAA or the aircraft manufacturer for the specific alteration or repair. They include the manufacturer's maintenance manuals, instructions for continued airworthiness, and FAA-approved service bulletins or engineering data. Using data from internet forums, supplier advertising, or hobbyist newsletters isn’t approved and may be inaccurate or inappropriate for your exact aircraft, which can lead to unsafe maintenance or regulatory violations. Therefore, maintenance actions must be performed strictly according to these FAA-approved sources, and if no approved data exist for a given action, you must obtain and rely on data that are approved for that purpose.