The Yacht Survey Process for Phinisi Acquisition
Independent marine survey is the single most important pre-closing diligence step. USD 8,000-18,000 cost. 60-80 page report. Sea trial 2-4 hours. We use vetted Indonesian and Singapore-based phinisi-specialist surveyors. Phinisi heritage (UNESCO ICH)

Why Independent Survey Matters
Phinisi yacht survey process engages an independent marine surveyor for hull (caulking, plank condition, ironwood keel inspection), rigging (mast, standing/running rigging, sail wardrobe), mechanicals (engines, generators, plumbing, watermaker), electronics (navigation, communication, safety), and interior. Cost USD 8,000-18,000. Output: 60-80 page report with photographs and recommended action items. Plus sea trial 2-4 hours under sail and engine.
Phinisi yachts are wood vessels. Wood condition cannot be reliably assessed from photographs or seller representations alone. Independent surveyor inspection — by a qualified marine surveyor with phinisi-specific expertise, paid by the buyer, with no commercial relationship to seller or broker — is the single most important pre-closing diligence step in any phinisi acquisition.
- Survey cost
- USD 8,000-18,000
- Report
- 60-80 page report
- Sea trial
- 2-4 hours
- Surveyors
- Vetted Indonesian and Singapore-based phinisi-specialist surveyors
Surveyor Qualifications We Look For
Phinisi-specialist marine surveyors are not the same as general yacht surveyors. We work with surveyors who have: minimum 5 years phinisi-specific surveying experience covering minimum 30 phinisi inspections, recognised marine surveyor certification (typically International Institute of Marine Surveying — IIMS — Member or Senior Surveyor grade, or equivalent), phinisi material expertise (wood identification, traditional joinery techniques, fastener corrosion patterns, deck caulking integrity), Indonesian regulatory familiarity (familiarity with Indonesian flag survey requirements, Komodo + Raja Ampat operating area knowledge), and reference list of recent phinisi survey clients we can verify.

Survey Scope
A comprehensive phinisi survey covers six major systems:
Hull and Structure
Visual and tactile inspection of every accessible plank, frame, and joint. Moisture meter readings at minimum 40 points (typical). Fastener spot-check via removal and inspection at 8-12 representative locations. Caulking integrity assessment with probe inspection. Keel and keelson inspection (ironwood condition, fastener integrity, bolt-through verification). Structural framing inspection (rib spacing, rib material, joinery quality). Stem and stern post inspection.
Rigging
Mast inspection (wood mast: condition, rot detection, fitting attachment integrity; alloy mast: condition, fitting integrity, electrolysis check). Standing rigging inspection (shrouds, stays, condition, terminations). Running rigging inspection (sheets, halyards, condition, age). Sail wardrobe inventory and condition assessment. Boom and gaff inspection. Topping lifts and lazy jacks.
Mechanical Systems
Main engine(s) — visual inspection, hour readings, oil sample analysis (recommended), running performance assessment. Generator(s) — same scope as main engine. Watermaker — output capacity test, membrane condition. Plumbing system — pressure test, fixture inspection. Climate control — operation verification, refrigerant level. Refrigeration — temperature performance verification.
Electrical + Electronics
Electrical panels, wiring, battery condition. Navigation electronics inventory and operational verification. Communication electronics (VHF, satellite phone, AIS) inventory and operational verification. Safety electronics (EPIRB, AIS man-overboard) verification. Entertainment electronics inventory.
Interior
Cabin layout inspection, finish condition, joinery quality. Galley equipment inventory and condition. Heads (toilets, holding tanks, plumbing) inspection. Salon furnishings condition. Crew quarters inspection. Storage and tank capacities.
Sea Trial
2-4 hour underway inspection covering: engine performance under load (RPM stability, exhaust colour, vibration), sailing performance under various points of sail (windward, reaching, downwind), manoeuvring at low speed, anchoring and weighing operations, safety equipment deployment verification, autopilot operation, navigation electronics under operational conditions.
What Surveys Reveal That Sellers Sometimes Don’t
Common findings from surveys we have commissioned: caulking deterioration requiring USD 15-45K remediation (most common), engine cooling system corrosion requiring USD 8-22K remediation (second most common), electrical system grounding issues USD 4-12K (third), generator hours higher than seller representation by 600-2,400 hours (fourth — almost always discovered via oil sample analysis vs odometer-only check), watermaker output below specification by 25-40% USD 5-12K membrane replacement, sail wardrobe age higher than represented by 2-5 years requiring sail replacement reserve USD 12-35K. None of these findings are deal-breakers for properly priced phinisi — they’re inputs to negotiation and refit budgeting.
Imagine the gentle sway of a Phinisi beneath your feet, the scent of salt and exotic spices on the breeze as you glide through the turquoise waters of Raja Ampat. This dream of exceptional Indonesian luxury begins long before you step aboard – it starts with the meticulous Phinisi yacht survey process.
Beyond the Hull: Ensuring Your Future Phinisi Adventures
While a Phinisi’s structural integrity is crucial, an independent survey delves deeper, safeguarding your investment and the sublime experiences that await. Imagine charting a course through Komodo National Park; your enjoyment relies on the vessel’s operational excellence.
The Engine Survey: A Separate Discipline
Hull surveyors note the engine; engine surveyors take it apart on paper. On a used phinisi the engine is routinely a third of the vessel’s practical value, so the pre-purchase file should include: oil and coolant analysis (a USD 150 lab test that reads internal wear like a blood panel), compression readings across cylinders, serial-number verification against the engine’s documents, service-record reconciliation against claimed hours, and a loaded run — not idle at the dock — with exhaust temperature and smoke observed. Truck-conversion engines, common in the working fleet, are not disqualifying; undocumented ones are, because parts strategy and remaining life cannot be priced.
Escrow and the MYBA-Style MoA
The payment structure that protects both sides of a phinisi deal is borrowed from international yacht practice: a Memorandum of Agreement in the MYBA pattern — 10% deposit into escrow or a neutral stakeholder account on signing, survey window written into the contract, buyer’s right to withdraw or renegotiate on documented findings, balance released only against the agreed document set (clean title, lien clearance, deregistration where applicable, bill of sale). Adapting this to Indonesian practice takes local drafting — the escrow role is often played by a law firm’s client account — but the architecture transfers intact, and sellers familiar with charter-market professionalism accept it readily. The renegotiation that follows survey findings is covered stage by stage in the used-boat buying guide.
Binding Insurance at Purchase
Insurance belongs inside the purchase timeline, not after it. Three practical points. First, approach underwriters before completion: a current independent survey is exactly what they require, so the pre-purchase survey does double duty — buy decision and insurability in one document. Second, bind cover from the moment risk transfers (usually completion or handover, whichever your MoA defines), including the delivery passage to home port; uninsured delivery voyages are a classic gap. Third, expect underwriters to price wooden hulls on survey quality and crew arrangements more than age — a documented ironwood vessel with professional crew insures normally, while an unsurveyed one may not insure at all, which quietly kills resale later. Where the vessel will run as a commercial charter, liability and passenger cover layer on top; structure questions belong with the ownership and flag guide.
Two companion files: the sea trial protocol that follows the survey and how gross tonnage is measured for certification.
Continue Your Buyer Journey
Resources curated by our buyer-side team — read in any order.
Frequently Asked Questions
01Can I attend the survey personally?
Yes — buyer attendance during survey is welcome and valuable. You see findings as they’re discovered, ask surveyor questions in real-time, and develop sense of vessel’s actual condition that pure-report review can’t replicate. Most surveyors actively brief attending buyers throughout. Plan 2 full days on-yacht for thorough survey attendance.
01Why is sea trial included in standard survey scope?
Static survey reveals condition; sea trial reveals performance. Sea trial covers engine performance under load (RPM stability, exhaust analysis), sailing performance under various points of sail, manoeuvring at slow speed, anchoring and weighing operations, autopilot and navigation electronics under operational conditions. Many issues only manifest underway — sea trial catches what static inspection misses.
Speak With Our Buyer’s Team
Two offices — Bali and Labuan Bajo. Our team responds within 4 business hours, weekdays. Confidential, no obligation.




