Pneumatic — Overheat Detection System Sensing Elements — Inspection
- Published
- Effective
- Deadline
- Replaces
- 2022-0243
- Replaces
- 2023-0136
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A330 and A340 aeroplanes must perform a special detailed inspection of each affected overheat detection sensing element within 72 months after 22 December 2022. If discrepancies are found, the affected parts must be replaced before the next flight. Additionally, from 26 July 2023, installation of affected parts at affected positions is prohibited. Actions already completed per the original Airbus service bulletin are accepted for compliance.
Summary
EASA Airworthiness Directive 2023-0136R1 is a regulatory document addressing the inspection of pneumatic overheat detection system sensing elements on Airbus A330 and A340 aeroplanes. It applies to specific models including A330-201 through A330-743L and A340-211 through A340-313, focusing on affected overheat detection system parts produced before 31 January 2021. The directive mandates inspections and potential replacements to ensure continued airworthiness and safety.
What changed
This revision of EASA AD 2023-0136 clarifies that full credit is given for inspections and corrective actions performed according to the original issue of Airbus Service Bulletin A330-36-3052. It also expands applicability to include A330-743L aeroplanes and retains the requirements of previous related ADs, ensuring comprehensive coverage of affected parts and aircraft.
Why it matters
This directive is critical for aviation professionals because it addresses a potential safety risk where certain overheat detection system sensing elements may fail to detect thermal bleed leaks, risking structural integrity. Operators and maintenance organizations must comply to prevent undetected air leaks that could lead to high-temperature exposure and damage. Compliance ensures regulatory adherence and maintains aircraft safety standards.
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