Incident Overview
The Derailment & Overturn involving KA Mutiara Timur occurred on 7 November 1986 at 13:28 WIB. The recorded incident site is located at ±1 km sebelum masuk Tanggul Station, Regency Jember, East Java, within the operational territory of Daop 9 Jember (Jember Operation Region).
Based on verified operational records: Anjlokan & Terguling: Enam kereta dan locomotives overturned menjelang Tanggul Station; lintasan KA tertutup selama 2 hari.
Track Characteristics & Operational Corridor
The incident location is situated along the track section or station perimeter of ±1 km sebelum masuk Tanggul Station, Regency Jember, East Java. Railway lines across Daop 9 Jember (Jember Operation Region) represent active corridors with steady passenger and freight traffic. Train operations are governed by statutory right-of-way principles outlined in national railway operational codes. At level crossings and station yards, traffic safety strictly relies on signaling obedience, level crossing warning devices, and road user compliance with rail right-of-way regulations.
Rolling Stock Involved & Recorded Impact
Zero fatalities were recorded in this incident; 32 injuries were sustained and received medical treatment.
Rolling stock and fleet formations identified in official documentation include: CC 201 83 26, CC 201 83 23 | 1 unit Locomotive dan 6 unit kereta penumpang derailed serta terguling. Post-incident emergency responses were carried out by regional railway operational teams and local emergency services, encompassing safety evacuations, physical structural assessments of locomotives and carriages, track clearing, and restoration of signaling infrastructure.
Safety Regulations & Statutory Context
This technical documentation is compiled as part of Indonesia's national railway safety public archive. In accordance with Law of the Republic of Indonesia Number 23 of 2007 concerning Railways (UU No. 23/2007), railway safety is a shared responsibility covering rolling stock airworthiness, track infrastructure integrity, train crew operational discipline, and public adherence at level crossings to safeguard safe and orderly transportation.