Nacelles / Pylons — Pylon Block Seals — Inspection / Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A320-251N and A321-253N aircraft must replace the pylon block seals with new parts in accordance with Airbus Service Bulletin A320-54-1040 within 24 months from 10 April 2019. Any replacements done before the effective date following the Airplane Maintenance Manual are acceptable. Requests for alternative compliance methods can be submitted to EASA with proper justification.
Summary
EASA Airworthiness Directive 2019-0068 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus A320-251N and A321-253N aeroplanes. It addresses cracks found in pylon block seals, specifically part numbers D0003167600000 and D0003167600100, which could compromise firewall integrity between the pylon and nacelle. The directive mandates inspection and replacement of these seals to ensure continued airworthiness.
What changed
EASA Airworthiness Directive 2019-0068 introduces a mandatory replacement requirement for affected pylon block seals on specified Airbus A320 and A321 aircraft. It requires operators to replace the seals within 24 months of the effective date, based on Airbus Service Bulletin A320-54-1040. This is a new regulation addressing a manufacturing defect causing cracks in the seals.
Why it matters
This directive is critical for aviation professionals as it addresses a potential safety risk that could reduce firewall integrity, impacting engine and nacelle safety. Operators and maintenance organizations must comply to maintain aircraft airworthiness and avoid operational restrictions. Compliance ensures the structural safety of the pylon-to-nacelle interface, which is essential for safe flight operations.
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