The Challenges of SRTP
The challenges of demonstrating compliance with SRtP in operation:
- Compliance with SRtP requires the ship essential systems to maintain a degree of operability for a set of defined statutory casualty scenarios.
- As a result, crew may be required to perform certain procedures intended to contain damages and to restore operability of essential systems.
- These procedures may include manual actions by the crew and need to be incorporated into the Crew Muster List.
- Crew manual actions need to be specified for all essential systems and statutory casualty scenarios on the basis of extensive and complex design documentation.
- New crew procedures need to be incorporated into drills and training schedules
Once the ship is in service, it is the responsibility of the ship’s crew to demonstrate compliance with SRTP requirements - at the request of the Flag State or Port State Control. The owner/operator team and ship crew need to acquaint themselves with and interpret the outcome of the FMEA studies delivered with the ship in order to develop the crew procedures for containing any of the damages defined in the SRTP regulations and recovering the operability of the affected essential systems. This task is challenging due to a number of reasons, such as:
The number of required manual steps to recover the operability of the ship systems for a single casualty may range from few to hundreds of individual actions. Moreover, the SRTP requirements need to be demonstrated for a large number (100+) of casualties (depending on ship size). Therefore, vast amounts of information need to be stored and accessed efficiently. The traditional paper copies of muster list and crew action cards may not be a viable solution.
Need of Design Validation
Most FMEA studies are carried out at early design stages and the routing of most systems connections (cables and pipes) are only consolidated towards the end of the basic design process. Therefore discrepancies between the FMEA studies and the as-built situation may occur. It is difficult to identify and keep track of these in a timely and systematic manner. The validation of design assumptions needs to be carried out as early as possible after the delivery of the ship.
Once the crew procedures are defined, continuous and systematic drills need to be conducted to ensure that the crew tasked with carrying out manual actions are familiar and competent with the emergency control procedures, in line with the correct design intentions and for all SRTP scenarios. The challenges include:
On board resources
Planning of and conducting SRTP drills is likely to require extensive efforts due to the large number of scenarios and associated manual actions. Manual actions may involve sequential steps carried out at different locations throughout the ship, requiring for example specific access arrangements. This logistic information (not necessarily provided in the FMEA studies) needs to be defined and recorded in a systematic manner and made available to crew throughout the life of the ship.
Alongside other damage control efforts and muster list activities, the technical response teams will now be tasked with carrying out additional actions required to demonstrate compliance with SRTP requirements - within a specified time period  hour. These additional tasks will put pressure on the operational command and crew themselves to plan and carry out the plan as efficiently as possible. This is particularly challenging when turnaround of crew is expected to be high.