Electrical Routing — Electrical Harness Routes 1M and 1S-1V — Modification
- Published
- Effective
- Replaces
- 2020-0227
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected ATR 72-212A aeroplanes must modify the electrical harness routes 1M and 1S-1V and rotate the de-icing pipe coupling according to ATR Service Bulletin ATR72-92-1051. This modification must be completed within 5,000 flight hours or 24 months after 2 November 2020, whichever occurs later, unless previously accomplished. Alternative methods of compliance may be approved by EASA upon request.
Summary
EASA Airworthiness Directive 2020-0227R1 is a regulatory update addressing electrical harness routing modifications on ATR 72-212A aeroplanes, specifically serial numbers 1165 to 1627 excluding certain exceptions. The directive mandates changes to the electrical harness routes 1M and 1S-1V and the rotation of the de-icing pipe coupling to prevent potential wire damage. This AD applies to ATR 72 aircraft manufactured by ATR-GIE Avions de Transport Régional.
What changed
EASA Airworthiness Directive 2020-0227R1 revises the original AD 2020-0227 by limiting its applicability to exclude aircraft that already have ATR modification 10052 embodied in production. The revision clarifies which serial numbers require the modification and confirms the required actions remain the same as initially mandated.
Why it matters
This directive is critical for aviation professionals because it addresses a safety risk involving electrical harness damage that could lead to wire failure, short circuits, or uncontrolled fire, potentially causing loss of multiple aircraft systems. Operators and maintenance teams must ensure compliance to maintain aircraft airworthiness and prevent in-flight electrical faults that could compromise flight safety.
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