The Zahro Express disaster occurred on the morning of 1 January 2017 when an Indonesian-flagged wooden passenger vessel caught fire in the waters of Thousands Islands Regency, off the coast of Jakarta. She was travelling from Jakarta's Muara Angke to Tidung Island, a popular tourist destination. The ferry, named MV Zahro Express, was carrying 216 passengers and 5 crew members. Of the 221 passengers and crews, a total of 24 people on board lost their lives.
The ferry, bound for Tidung Island, was crowded with tourists when the generator on the main deck produced sparks. The generator overheated and caused a fire that spread through the vessel. The crowded condition, aggravated by the lack of emergency exits, poor crew resource management and lack of evacuation plan, caused a pile-up near the vessel's main access, hampering the evacuation process. The hampered evacuation process caused multiple smoke inhalation and deaths.
The incident was the deadliest ferry disaster in Jakarta since the MV Levina 1 disaster in 2007. Numerous procedural violations were later discovered by the Indonesian police. As such, several officials were summoned and apprehended by the police. The captain was charged for negligence due to "manifest discrepancies", while the owner of the ferry was only sent a disciplinary note by the Indonesian Ministry of Transportation.
Ship information
MV Zahro Express was a privately owned, traditionally made wooden passenger ferry built in Thousands Islands Regency in 2013. It was conventionally built by local shipbuilders. The designing and production phase was solely based on the shipbuilders’ expertise and was not based on rules that were supposed to be followed by local shipbuilder. The vessel was designed to carry a total of 285 passengers and 5 crew members. There were 2 decks in the vessel, the main deck and the upper deck, with the bridge located at the front of the upper deck. Both decks were connected with stairs located at the back and at the front of the vessel. The engine compartment was located at the lower stern. The main engine, genset, fuel tank, and water tank were all located at the engine compartment. The seats on both decks were made from fiber reinforced plastic. The superstructure was made from various industrial woods.
There were four main access in the ferry. The access of the main deck was located at the front and the back, with the bow access had a width of . The upper deck had three main access, of which two were located at the bow and one access, connected directly to the main deck, was located at the stern. The bow access of the main deck and two access of the upper deck would eventually lead the passengers to the forecastle deck.
The vessel was not equipped with an evacuation route, nor was it classified onto the government's classification board.
Event Prior to disaster Passengers began to board MV Zahro Express as early as 05:00 a.m local time. The crew members then asked permission from local authorities to depart from Muara Angke and was later granted. The manifest, which was given by the crew to the authorities, listed a total of 100 passengers and 5 crew members on board the ferry. The actual number of passengers on board, however, were over 200 people.
At 07:30 a.m, the chief engineer of the ferry turned on the main engine of the ferry. He realized that smoker was coming out from the engine compartment. As he headed towards the engine compartment, he turned on the outlet fans and discovered that the smoke was produced from a leaking exhaust pipe of the ferry's generator. The chief engineer then solved the problem by covering the leaking pipe with an asbestos cloth.
MV Zahro Express departed from Muara Angke at 08:15 a.m, with a speed of and a destination to Tidung Island. The visibility was excellent and the weather was in very good condition.
Disaster The ferry had just departed from Muara Angke for 15 minutes when crew members noticed that there were smoke coming out from the lower left engine compartment, which was located around an electric generator. The crew members then went to the engine compartment to check on the source of the smoke. The crew then realized that flames had developed around the generator. The Chief Engineer then reported to the Captain the situation. The engine was stopped and an evacuation order was announced.
Chaos immediately engulfed the entire ferry as the smoke thickened, with screaming and crying could be heard. Passengers on the main deck recalled that visibility deteriorated sharply with the main deck being described as pitch black. Crew members couldn't contain the crowd as panicking passengers rushed to the exit. As the fire was located at the stern, most of the passengers in the main deck opted to evacuate through the deck's bow access. Passengers in the upper deck, who noticed that smoke was coming out from the stern, immediately ran to the two main access located at the bow. The main deck and the upper deck bow access would eventually lead the passengers to the forecastle deck. Passengers from the upper deck then poured onto the forecastle deck, many of whom hesitated to jump onto the sea. This caused a pile-up at both decks, far worse in the main deck. Survivors recalled that the fire was very quick and that some explosions were heard. As crew members were busy at saving themselves, the fire wasn't contained and grew larger. Many passengers didn't don life jackets and immediately jumped onto the sea.
The rescue operation was swift as there was heavy traffic in the area. Due to the proximity of MV Zahro Express with nearby vessels, many passengers were immediately rescued. As passengers were rescued, the fire intensified and spread to the upper deck. Five minutes after the fire had just started at the lower deck, MV Zahro Express was completely engulfed in flames.
Recovery Immediately after the fire was extinguished, rescue personnel towed the burnt wreckage of MV Zahro Express to Muara Angke. She arrived at Muara Angke on 12:30 pm. Search and rescue personnel then immediately began their work to recover any remains on the vessel. A total of 20 charred bodies were immediately recovered from the vessel. Rescue personnel also recovered four bodies from the sea, bringing the death toll to 24. There were multiple reports that 17 passengers were still missing. As such, rescue personnel deployed divers and more equipment to the area where the ferry had caught fire.
The search and rescue efforts were conducted from 1 to 8 January. The Indonesian National Search and Rescue Agency (BASARNAS) searched a total of of the sea to search for any survivors or remains. Thousands of personnel, including 5 ships and 15 divers, were involved in the operation. As no human remains were recovered from the sea, BASARNAS concluded the search and rescue operation on 8 January.
Casualties
As the disaster happened on holiday season, most of the passengers were sightseers who were travelling to Tidung Island for vacation. The route was popular among tourists and was frequently used by travel agencies. According to NTSC, the vessel operating the route, MV Zahro Express, was carrying 216 passengers and 5 crew members. Initially, there were some discrepancies on the exact number of the passengers and crew members on the vessel, as the captain admitted that the crew members didn't count the number of passengers on board. The passenger manifest stated that there were at least 100 passengers on board. In reality, however, there were more than 200 people. The discrepancies on the number of passengers and crew members hampered the search and rescue effort.
The Indonesian National Board for Disaster Management (BNPB) stated that at least 20 bodies have been found inside the vessel, 4 bodies were recovered from the sea and 17 other passengers were still missing. Officials reported that the missing passengers might have been included in the recovered bodies. Later on, the final tally of the number of victims were 24 deaths and it was revealed that there was no missing passenger. A total of 48 wounded passengers were hospitalized. All of the victims were passengers and no crew members were killed in the incident. By 6 January, all 24 victims have been identified by the police.
Investigation Cause of fire The fire was caused by an overheated generator in the vessel's engine compartment. This was based on eyewitnesses accounts and findings on the burnt generator. An examination on the generator revealed that there were traces of burns on the stator exciter of the generator. Several parts of the stator were found to be a lot darker than the other, suggesting that a generator overheat might have happened. The overheating might have been caused by a short circuit between the stator and the rotor. The rotor, which was not supposed to scrape the stator, had shifted from its initial position due to damage on its bearing. There were also traces of electric sparks on the two electrodes of the generator.
Environmental factors Investigation found several contributing factors to the severity of the fire on board the ferry, including the ferry's wooden material, the seating material, and numerous design flaws on the engine compartment and the ferry's superstructure. The fire spread rapidly throughout the ferry's main deck and upper deck.
The engine compartment was consisted of a water tank, a generator, a genset and fuel lines located over the generator. A wooden bearing was placed inside, acting as a seawater filter and cooler. To prevent seawater from entering the compartment, a stuffing box was placed at the generator's stern tube. However, some seawater poured through the barrier. The lower portion of the engine compartment then collected it, forming contaminated seawater. During the refueling, some fuel dripped, creating an oily bilge water. The ferry was equipped with a pump to suck remaining seawater in the compartment. However, the distinct density between fuel and seawater caused the remaining fuel to stick and seep into the floors in the engine compartment.
The lack of ventilation inside the engine compartment caused the temperature to rise. This caused some fuel particles to evaporate. An air tube in the compartment, located directly above the fuel tank, further aggravated the condition. The air tube inside the engine compartment would cause evaporating fuel to mix with oxygen, causing a combustible air. As the generator caught fire, an airtight divider should have prevented the fire from spreading out. The divider was not placed properly, thus the fire spread. The fire could also be immediately contained inside the compartment had the crew installed a quick closing valve on the genset. However, it was not installed.
Thick smoke rising from the engine compartment then spread into the main deck, causing the temperature to rise. As the ferry was made from industrial woods, the fire burned rapidly. This was worsened by the fibre-reinforced plastic material of the seats and on the interior of the ferry. The lack of fire-fighting equipment on the ferry caused the fire to grow larger.
Evacuation failure
The fire started at the engine compartment, which was located at the lower stern, directly under the main deck. The engine compartment was connected directly to the main deck. As the generator failed and burst into flames, thick smokes immediately filled the main deck. This immediately caused panic among the passengers in the main deck. NTSC estimated that at the time of the disaster there were around 130 passengers on the main deck. Using pathfinder, investigators reconstructed the evacuation of the passengers during the disaster.