EASA AD BR-2021-08-01
Time Limits / Maintenance Checks - Airworthiness Limitation Section / Maintenance Program - Revision / Main Landing Gear Assembly - Reidentification
Summary
Brazilian Airworthiness Directive AD No. 2021-08-01 issued by the Agência Nacional de Aviação Civil (ANAC) applies to Yaborã Indústria Aeronáutica S.A. ERJ 190-100 ECJ airplanes, serial numbers 19000109 through 19000732. This directive addresses maintenance program revisions and reidentification of certain Main Landing Gear Assembly parts to ensure proper life limits and structural integrity. It mandates compliance with updated maintenance tasks and record inspections for affected aircraft.
What Changed
This new directive introduces requirements to revise the approved maintenance program by incorporating Temporary Revision 9-2 of the Maintenance Planning Guide 2928 Appendix A, verify maintenance records per Embraer Service Bulletin 190LIN-32-0039, and reidentify specific Main Landing Gear parts before or during the next overhaul. It also prohibits installation of certain part numbers on the affected aircraft model after the effective date.
Why It Matters
The directive ensures that life-limited components in the Main Landing Gear are correctly identified and maintained according to their specific operational loads, preventing potential structural integrity issues. This is critical for operators and maintenance organizations to maintain airworthiness and comply with regulatory safety standards. Proper compliance avoids unsafe installations and supports continued safe operation of the ERJ 190-100 ECJ fleet.
What To Do
Operators must revise their maintenance programs within 90 days of the effective date to include the updated life-limited item tasks. They must also inspect maintenance records within the same timeframe and submit inspection results as instructed. Reidentification of specified Main Landing Gear parts must be completed before or during the next overhaul or upon removal, and installation of the listed parts is prohibited after the directive's effective date.
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