04.G-2024-22.02

Isi rekomendasi

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 position. However, the function of holding the LST from moving when it is parked was assumed to be replaceable by placing a wheel chock. The assumption that an unserviceable parking brake could be replaced with a wheel chock resulted in the LST with an unserviceable parking brake being assessed as a serviceable vehicle during periodic inspection and daily checks. The unserviceable parking brake contributed to the unintentional movement of the LST. Therefore, KNKT recommends that PT Gapura Angkasa to ensure the serviceability of the parking brake of the GSE to prevent the risk of collision.