EVALUATION OF MAINTENANCE TASKS EFFECTIVENESS ON AIRCRAFT LANDING WHEELS B737-800

• Main Author: Yosafat Hertanto, Adrian
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/62565
• Institution: Institut Teknologi Bandung

In maintaining the B737-800 aircraft, XYZ airline follows the Continuous Airwothiness Maintenance Program guidelines. However, in its implementation, XYZ Airline experienced many operational disruptions caused by many unscheduled removals due to failure of the landing wheel. Unscheduled removal activities disrupt flight operations by causing delays in flight operations. This study uses the reliability calculation method and the landing gear failure mode analysis. The MTBR of each failure mode is expressed as the age of failure using the Weibull distribution. Unreliability is further compared to existing maintenance tasks. The data used were obtained from the Pilot Report from January 2017 to September 2018. The components are assumed to have the same Time Since Installed (TSI) and not interchangeable. The landing wheel component has 4 failure modes: deep cut, ply visible, worn out, bald. The dominant failure mode on the front landing wheel is deep cut and on the main landing wheel it is ply visible. The maintenance task carried out by XYZ airlines to maintain landing gear is not effective for all failure modes, so it is necessary to revise maintenance duty intervals.