What type of maintenance is performed in accordance with an aircraft's service bulletin?

Scheduled maintenance that addresses specific manufacturer recommendations is essential for ensuring the aircraft operates safely and effectively. Service bulletins are issued by aircraft manufacturers to inform operators of necessary actions that may involve modifications, repairs, or inspections designed to enhance safety or performance based on emerging data or findings.

By following these recommendations outlined in service bulletins, maintenance personnel can ensure compliance with safety standards and maintain the aircraft’s reliability, directly aligning with the manufacturer's specifications. This proactive approach helps in preventing potential issues before they arise, contributing to overall aviation safety and aircraft longevity.

In contrast, routine daily inspections are general checks that do not typically involve the specific directives of service bulletins, while unscheduled repairs are reactive and based on immediate findings or concerns reported by pilots. Advanced diagnostics may be used after a problem is identified, but this also lacks the broad preventative intention behind adhering to service bulletin guidance.