Skip to content

VESSEL PROFILE · IMO 9727833

Deep Discoverer

Published capabilities, ownership records and history. Evidence stays attached to every fact.

Open interactive profile 8 sources · 27 evidence records

Published specifications

10 particulars

Source dates describe the evidence, not current certification or operational availability. Operating roles may be historical. Reference-only screenshot figures and ratings are not used in this summary.

Published operating rolePublished source: TechnipFMC
Build yearPublished source: 2017
Length overallPublished source: 121 m
BeamPublished source: 23 m
Dynamic positioningPublished source: DP3
Saturation depthPublished source: 300 m
Saturation diversPublished source: 18
Bell configurationPublished source: Twin bell
Saturation system manufacturerPublished source: DRASS
Main cranePublished source: 250 t active heave-compensated crane; system rated for 3,000 m water depth

Not sourced in this summary: Hyperbaric lifeboats (SPHL), Bell occupancy, Deck area, Draft.

Specification research notes

VARD builder reference adds precise hull dimensions. Its February 2019 delivery is distinct from TechnipFMC’s published 2017 build year; existing qualified build entry is retained.

Supporting capability records

19 records

Published design and equipment particulars are evidence of the source configuration, not a current certificate or availability guarantee.

Operator-listed build year

2017

The builder separately dates delivery to February 2019; build and delivery dates are not conflated.

TechnipFMC ↗Applies to 2017 · Publication undated · Reviewed 17 Oct 2026

Length overall

121 m

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Length between perpendiculars

110.8 m

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Moulded breadth

23 m

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Deadweight

5,500 t

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Accommodation

120 people

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Design / yard

VARD 3 03; Vard Søviknes yard number 801

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Dynamic positioning

DP3

Published design or fleet specification; confirm configuration and load limits for a particular operation.

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Saturation system

18 divers; twin bells; 300 m diving depth

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Air diving

Permanently installed air-diving system

Published design or fleet specification; confirm configuration and load limits for a particular operation.

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Main subsea crane

250 t active heave-compensated crane; system rated for 3,000 m water depth

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Auxiliary subsea cranes

Two 50 t cranes; system rated for 350 m water depth

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

ROV spread

One ROV, listed for 1,000 m

Published design or fleet specification; confirm configuration and load limits for a particular operation.

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

ROV deployment

Starboard side-launch ROV hangar

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Dive moonpools

Damping zones incorporated into the moonpools

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Exhaust treatment

SCR reactors on all main diesel generators

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

Published speed

14 knots

Published design or fleet specification; confirm configuration and load limits for a particular operation.

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Lifesaving layout

Two MOB boats (one FRC), two vessel lifeboats and two hyperbaric lifeboats for divers

Published design or fleet specification; confirm configuration and load limits for a particular operation.

VARD ↗Publication undated · Reviewed 17 Oct 2026

18-person twin-bell system at delivery

DRASS describes an 18-person, 300-msw system with two moonpool-launched bells, four decompression chambers, two horizontal transfer-under-pressure compartments, four vertical entry locks and two 18-person hyperbaric lifeboats. It also reports 37,100 Nm³ gas storage and a surface-diving chamber for operations to 60 msw.

The title uses Deep Discovery, while the article identifies Deep Discoverer and its 2018 naming ceremony. Delivery-era equipment description; current certification and configuration are not established.

DRASS Group ↗Published 21 Dec 2018 · Reviewed 18 Oct 2026

Ownership & identity

4 records

Registered owner, group owner, operator, manager and P&I entered owner are different roles. Each record retains the role and date stated by its source.

Vessel identity

IMO number: 9727833
MMSI: 311000849

Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Vessel identifier review

Deep Discoverer · IMO 9727833 · MMSI 311000849

Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Published fleet operator

TechnipFMC

TechnipFMC ↗Publication undated · Reviewed 17 Oct 2026

Acquisition history

TechnipFMC reported purchasing the vessel in January 2019 for US$116.8 million.

TechnipFMC ↗Applies to Jan 2019 · Publication undated · Reviewed 17 Oct 2026

Financing history

The September 2019 quarterly report describes funding the purchase through a subsequent sale-and-leaseback.

A financing history fact, not a current registered-owner assertion.

TechnipFMC ↗Applies to 2019 · Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (1)

The present registered owner and lessor were not established from the reviewed free primary sources. Acquisition, operator and sale/leaseback roles must not be conflated.

Checked 17 Oct 2026

Inspection & class records

0 records

These are historical records within each source’s coverage. Missing records are not a clean bill of health, and class descriptions do not prove current certification.

No verified records are available in this section of the collection.

Research coverage & limitations (2)

No complete public PSC inspection record or current class survey certificate was obtained. The yard maintenance account is not an inspection clearance.

Deep Discoverer maintenance at Damen Shiprepair Amsterdam ↗

Checked 17 Oct 2026

No exact IMO match was returned by the USCG PSIX vessel search. This is a limited US dataset, not a worldwide inspection clearance.

USCG PSIX public API ↗

Checked 17 Oct 2026

Project history

4 records

Vessel-specific events and contextual project records retain their dates and limitations. A regional contract award alone does not establish vessel employment.

Amsterdam maintenance campaign

Damen dates the project December 2023: 46 days at the yard, including 31 days in drydock; all six DP thrusters were overhauled.

Damen ↗Applies to Dec 2023 · Publication undated · Reviewed 17 Oct 2026

ROV deck and dive-bell maintenance

Damen reports a new ROV mezzanine, crane-boom-rest access, diving-bell clump-weight maintenance and hull/coating work.

Maintenance activity is not a class survey result.

Damen ↗Applies to Dec 2023 · Publication undated · Reviewed 17 Oct 2026

Toni–Tiffany pipeline flushing

The UK screening direction names Deep Discoverer for pipeline flushing from Toni PPSM to Tiffany, expected to start 22 August 2021 for up to five days.

Planned work in a regulatory consent; this source does not prove completion.

UK Department for Business, Energy & Industrial Strategy ↗Applies to 22 Aug 2021 · Published 18 Aug 2021 · Reviewed 17 Oct 2026

Delivery milestone

VARD lists delivery in February 2019.

Delivery milestone; the operator fleet overview separately lists build year 2017.

VARD ↗Applies to Feb 2019 · Publication undated · Reviewed 17 Oct 2026