Technical Safety Dossier & Event Information
Incident Overview
The Derailment (Anjlokan) involving KA Tawang Jaya (Jakarta–Semarang) occurred on 7 April 2007 at 03:10 WIB. The recorded incident site is located at Surodadi, Regency Tegal, Central Java, within the operational territory of Daop 8 Surabaya (Surabaya Operation Region).
Based on verified operational records: a. Jam 02.51, KA 170A Tawang Jaya berhenti di
Larangan untuk Station bersilang dengan KA 39A Sembrani yang berjalan langsung melewati
Larangan pada Station jam 02.54 WIB.
Pada jam 02.56 WIB, KA 170A diberangkatkan
kembali dari Larangan menuju Station Suradadi Station.
g. Sedangkan trainset kereta yang terputus dari locomotives derailed dan terguling di
belakang wesel di spoor III sebelah arah kanan.
f. Locomotive CC 20312 berhenti sebelum sinyal masuk dan mundur kembali ke Suradadi Station. driver kemudian memberhentikan Locomotive di depan peron Suradadi Station.
e. Di depan sinyal masuk Suradadi dari Station arah Pemalang (Km 131+954) terdapat
trainset KA 3A Argo Anggrek yang sedang berhenti menunggu untuk bersilang dengan
KA 170A di Suradadi Station.
d.
Track Characteristics & Operational Corridor
The incident location is situated along the track section or station perimeter of Surodadi, Regency Tegal, Central Java. Railway lines across Daop 8 Surabaya (Surabaya 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
Recorded casualty impact in this event encompasses 1 fatality and 14 injuries requiring medical care.
Rolling stock and fleet formations identified in official documentation include: Rangkaian kereta ekonomi KA Tawang Jaya. 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.