Boeing 737-800 PK-GMP — Bandar Udara Internasional Kualanamu, Medan

KNKT recommends that the DGCA review the Regulation Number KP 635 of 2015 to prevent confusion about the minimum requirements of the GSE.

In 2020, the provision for the Minister of Transportation to certify the airport facilities was abolished, and the DGCA did not have a safety oversight program for the operation of motorized GSE. Without a safety oversight program from the DGCA, ineffective audits from the aircraft operator, and the lack of supervision by the airport operator, the operation of motorized GSE with an unserviceable p…

PT Angkasa Pura Aviasi (airport operator) also supervised the motorized GSE movements by performing airside patrol five times a day and monitoring the movements from CCTV in the operational room. The supervision procedure required checking the availability of parking brakes, and all the supervision results were documented in the daily logbook. However, the investigation did not find any findings r…

The lavatory service system was originally installed in a truck manufactured by Mitsubishi in 1986 and was subsequently reconditioned. The investigation could not find any formal documentation for the reconditioning process as required in the GSE Maintenance

PT Gapura Angkasa Ground Operation Manual (GOM) Subchapter 6.1.2 states that if the parking brake is not working, the GSE shall be prohibited from being used and labeled as unserviceable. The parking brake shoe and lining of the LST were removed during a Preventive Maintenance Inspection (PMI) on 13 September 2023. The removal of those components made the parking brake unable to hold the LST in po…

After more than six continuous hours of work in an eight-hour shift, especially under operational and environmental demands, the mental resources available to conduct a task may be reduced, and fatigue may begin to develop. Even mild fatigue can reduce vigilance and the thoroughness of routine checks, often without the individual being aware of it.When GSE Operator 1 placed the wheel chock, he als…

PT Garuda Indonesia conducted a Station Safety Audit (SSA) of their ground handling provider periodically. In May 2023, the SSA conducted on PT Gapura Angkasa identified the operation of the Baggage Towing Tractor (BTT) with an unserviceable parking brake. This finding was closed by placing the BTT in the workshop. Therefore, the reappearance of motorized GSE operated without a serviceable parking…