Systems & Repairs
Critical vessel systems — controlled, repaired and upgraded.
MVS surveys, repairs, upgrades and commissions vessel systems with named accountability and clear boundaries. OEM appointment and independent assurance stay with the accredited parties.
Controlled at the interfaces that fail first
System families
Connected-systems depth
Interface logic
Systems are controlled at the points where they connect — the interfaces that fail first.
DP & automation
Dynamic positioning and automation behaviour, alarms and operational consequence.
Power & distribution
MV/LV generation, switchboards and distribution under load and fault conditions.
Drives & propulsion
Variable-speed drives, propulsion and thruster intervention coordination.
Reference & navigation
Position reference and navigation system behaviour and integration.
Cranes & deck
Deck cranes, lifting appliances and proof-load coordination through test authorities.
Pipelay
Tensioner and pipelay control experience, coordinated with employer/project permissions.
HVAC & supporting systems
Heating, ventilation, refrigeration and the supporting services that keep the vessel habitable and operable.
Legacy & obsolescence
Discontinued PLC/HMI, obsolete drives and end-of-life controllers — migration, spares strategy and keep-running support.
PMS & maintenance diligence
How planned maintenance is actually followed against OEM recommendations — condition survey, gap and irregularity findings.
Keep-running support
Ongoing engineering support for ageing and out-of-production equipment, so it stays operable and compliant.
Physical integration
How equipment physically fits, mounts and clears within a real vessel.
Every system family above is held under principal experience PE Principal Experience.
Equipment experience
System families & makes worked on
Grouped by family, with representative equipment makes our team has surveyed, repaired, upgraded or commissioned. Makes identify experience only.
DP & position reference
DP-2 / DP-3 dynamic-positioning control systems; acoustic, laser and microwave position reference; DGPS reference and MRU motion sensors.
Automation & IAMS
Vessel-wide integrated automation (IAMS) — alarm, monitoring & control.
Power generation
MAN B&W, Wärtsilä, Caterpillar, Bergen and Mitsubishi main engines; Cummins gensets; Stamford and Leroy-Somer alternators.
HV/LV distribution & switchboards
Terasaki, Siemens & Converteam switchboards and HV/LV distribution; ABB motors.
Drives & soft starters
ABB, Vacon and Emotron variable-speed drives; ABB & Siemens soft starters; drive-cabinet rebuilds.
Propulsion & thrusters
Rolls-Royce azimuth & tunnel thrusters; Wärtsilä controllable-pitch & retractable units; ZF marine transmissions.
Cranes & lifting
Huisman, MacGregor, TTS and Seatrax pedestal / mast cranes; proof-load & recertification.
Pipelay equipment
Tensioners, articulated stinger and abandonment & recovery (A&R) systems.
Deck machinery & winches
Rolls-Royce and NOV anchor / mooring winches and hydraulic power units.
Gangway / walk-to-work
Telescopic motion-compensated gangway with monitoring & control.
Ballast & BWTS
Type-approved ballast-water treatment retrofit and ballast pump systems.
Navigation & comms
Furuno radar & GMDSS, gyro and speed log, satellite comms and bridge systems.
Repairs & upgrades catalogue
Concrete scopes we specify, repair, upgrade and commission
Delivered around live operations and in dry dock. Each scope is controlled, evidenced and closed out against records.
DP, power & drives
- DP control retrofit / upgrade (new main + backup controllers)
- DP performance-maintenance upgrade & proving trials support
- Power-management (PMS) upgrade, blackout & load-sharing commissioning
- VFD retrofit and drive breakdown recovery (new foundation, cabling, commissioning)
- Soft-starter installation on thruster e-motors
Propulsion & thruster control
- Thruster-control-unit (TCU/ACU) repair, reconfiguration & modernisation
- Azimuth-thruster service — UGB/LGB, coupling & alignment; tunnel-thruster overhaul
- Legacy PLC/HMI migration (discontinued processors to current hardware)
- Genset ECU programming & control-unit repair
- Propulsion gearbox & alternator/generator overhaul
Navigation, surveillance & comms
- ECDIS and VDR / S-VDR installation & commissioning
- DP position-reference upgrade (laser, HiPAP, MRU/motion-sensor calibration)
- CCTV upgrade, expansion & repair
- Legacy comms upkeep — PABX repair, sat-TV reconfiguration, obsolete-parts management
Hull, structure & sea systems
- Underwater hull blast & coating-system renewal (controlled DFT)
- Steel renewal / crop-and-renew, frame & stiffener repair to Class
- Sea-systems & valve overhaul (sea chests, ICAF/anodes, gate/ballast/safety valves)
- Ballast-water treatment (BWTS) retrofit & commissioning
Cranes, lifting & deck equipment
- Crane 5-yearly mechanical overhaul (cylinders, seals, bushings, pins)
- Crane proof-load testing & recertification (110% basis)
- Crane structure NDT & coating repair (rope-access)
- Deck-machinery & winch overhaul
Compliance, helideck & pipelay
- Helideck aviation-lighting & HMS upgrade to CAP 437
- Metocean sensor configuration & verification
- Pipelay tensioner re-mobilisation, calibration & capacity testing
HVAC, refrigeration & accommodation
- HVAC condition assessment, heat-load recalculation & ducting-redesign basis
- Chiller, AHU & refrigeration-plant condition definition & replacement workpack
- HVAC documentation, balancing-report review & as-built basis
- Accommodation, galley & sanitary refit and POB-upgrade definition
- Control-upgrade & energy-improvement specification for existing systems
Fire, safety & life-saving systems
- Fire & gas detection overhaul, expansion & addressable-loop upgrade
- Fixed fire-fighting (CO2, water-mist, foam) & helideck deluge service
- Emergency-shutdown (ESD) & fire-damper system repair & testing
- LSA / FFA inspection, servicing & survey coordination
- Watertight-integrity, alarm & mustering system upkeep
Fuel, lube & auxiliary machinery
- Fuel-oil & lube-oil systems, purifier / separator overhaul
- Fresh-water generation (RO / evaporator) service & recommissioning
- Compressed-air systems & air-compressor overhaul
- Sea-/fresh-water pump systems, bilge & oily-water separator
- Incinerator, sewage-treatment & tank-systems support
Legacy equipment upkeep & obsolescence support
- Obsolescence assessment & spares strategy for end-of-life equipment
- Legacy PLC / HMI / automation migration to current hardware
- Drop-in replacement engineering where OEM parts are discontinued
- PMS / maintenance-structure rebuild & legacy-spares cataloguing
- Worldwide sourcing of hard-to-find and legacy spares
- Keep-running support & planned upkeep of ageing systems
Pipelay & subsea-construction spread
- Pipe-handling, transfer & tensioner system service and calibration
- Abandonment & recovery (A&R) winch overhaul & load testing
- Articulated stinger refurbishment (structure, hinges, roller boxes, coating)
- Pipelay A-frame, firing-line & manriding-basket support
- Pipelay-to-DP / vessel-management interface & mode reinstatement
Support services
- Planned-maintenance (PMS/CMMS) build & deployment
- Root-cause analysis & failure investigation
- Remote engineering support
- Condition assessment & inspection
- Documentation & crew operating guides
- Safe-to-operate verification
- Naval architecture, ship design & 3D rendering
- Staff augmentation / embedded specialists
All workfronts run to current safety standards, with internal HSE protocols, permit-to-work discipline and PPE.
Worldwide supply route
Spare parts and legacy equipment, sourced worldwide
Where an upgrade, repair or lifecycle scope needs spare parts, consumables or hard-to-source legacy and obsolete equipment, MVS draws on a named worldwide marine supply route — IAMSEA Global Marine Services (Abu Dhabi) — for global sourcing and delivery, with regional ship-repair, dry-dock and OSV support across the Middle East and Africa. MVS defines the scope, interfaces and acceptance; sourcing and supply run through the route.