EASA AD US-2018-15-06
Time Limits - Airworthiness Limitations - Revision
Summary
The Federal Aviation Administration's Airworthiness Directive 2018-15-06 addresses Honda Aircraft Company LLC Model HA-420 airplanes. This final rule mandates the incorporation of new and revised airworthiness limitations into the maintenance program to correct omissions and errors in the previous Airworthiness Limitation and Inspection Manual. The directive aims to enhance safety by updating maintenance tasks related to hydraulic and ice protection systems.
What Changed
This AD introduces revised airworthiness limitations by replacing the previous Airworthiness Limitations section 05-60-00 with the updated version dated May 1, 2018. It relocates certain system checks, such as the ice protection system check and hydraulic power system check, into the airworthiness limitations section and reduces compliance intervals for these tasks. Additionally, it corrects procedures for hydraulic system checks and mandates immediate compliance for airplanes exceeding new maintenance intervals.
Why It Matters
For aviation professionals, this AD ensures that critical maintenance tasks are properly documented and performed within updated intervals, reducing the risk of latent failures in key systems like hydraulic and ice protection. Operators and maintenance teams must update their maintenance programs to comply with these changes to maintain safe operation and regulatory compliance. Failure to adhere could result in system failures leading to potential loss of airplane control.
What To Do
Operators of Honda HA-420 airplanes must revise their maintenance programs by incorporating the revised Airworthiness Limitations section 05-60-00 dated May 1, 2018, by August 13, 2018. Airplanes that have exceeded the new maintenance intervals must complete the required inspections or replacements before further flight. Compliance with the AD is mandatory, and comments on the rule must be submitted by September 21, 2018.
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