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July 11, 2026Fatigue of Aircraft StructuresOpen Access

Fatigue-Induced Crack an Aircraft Fire Extinguisher Outlet Discharge System: A Maintenance Case Study of an Airbus A330-900

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Authors

GSGunawan SaktiLSLaila Bungas SarwaniHPHadi Prayitno

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Overview

Case study analyzes crack in fire extinguisher discharge system, indicating maintenance importance.

Key Points

  • This study aims to analyze a crack detected in the fire extinguisher outlet of an Airbus A330-900 and its implications for safety.
  • Applied a real maintenance case study approach integrating inspection records and visual observations.
  • Conducted fatigue interpretation and Paris Law-based crack growth simulation using MATLAB.
  • Evaluated safety factors and performed Failure Mode and Effects Analysis (FMEA).
  • Crack length was less than 5 mm after approximately 5,642 flight cycles with a safety factor of 1.2.
  • MATLAB simulation predicted crack growth aligned with actual flight cycle data, confirming fatigue-induced propagation.
  • Post-replacement testing showed no observable leakage and restored normal flow characteristics.

Cite This Study

Sakti et al. (2026) studied this question.

synapsesocial.com/papers/6a51e168c18d7f28ca5010d3https://doi.org/10.2478/fas-2025-0009
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