Resolving Engine RPM Fluctuations

Main Engine stabilization via SmartSeas.AI Fleet Intelligence.

The Problem ME Stability Loss

Jan 6, 2026: ME RPM fluctuated (15-40 RPM) during unmooring at Tramandai SBM. Manual troubleshooting failed after 5.5 hours.

SmartSeas Intel Diagnostic Flag

Office Superintendent used SmartSeas.AI to discover an identical Nov 2024 incident from sister vessel "GHI" regarding Pos 84 solenoid leaks.

The Resolution Secured Laycan

Leak at Pos 84 valve rectified. Remote operation restored in 70 minutes, allowing the vessel to secure its São Luís laycan.

Background

The vessel reported fluctuations in Main engine rpm on Dead slow ahead while unmooring from SBM. The vessel changed over to Local manoeuvering for unmooring and safely anchored for troubleshooting. SmartSeas.AI surfaced a similar incident from the fleet’s knowledge base—a structured defect report from the sister vessel—giving the team a precise hypothesis for the root cause and a proven resolution path.

Chronology of Events

6 Jan 2026

Vessel was unmooring from SMB at Tramandi, Brazil around 01:00 am. Main engine rpm observed fluctuating from 15 to 40 rpm instead of being steady at 40 rpm.

Vessel was anchored for 5.5 hours for troubleshooting and was unable to rectify the issue after multiple attempts. Vessel was not using SmartSeas.Ai.

Vessel departed port at 09:00 am to next port Sao Louis, to arrive for laycan on 15 Jan 26.

6 Jan 2026

Electrical superintendent used SmartSeas.Ai for troubleshooting the issue.

SmartSeas.Ai had flagged a similar incident on sister vessel "GHI" on 24 Nov 2024.

Troubleshooting advice was shared to the vessel to check Pos 84 solenoid valve.

7 Jan 2026

Vessel had checked and inspected Pos 84 solenoid valve and found it leaking giving a false stop signal to the CCU of the Main Engine.

The valve was replaced in 70 minutes. Remote operation was restored. Vessel proceeded to next port Sao Louis, Brazil and made it for the laycan in time.

29 Jan 2026

Fleet leadership circulated the resolution as a critical issue successfully resolved using SmartSeas.AI insights.

Tangible Cost–Benefit (Per Incident)

Category WITHOUT SmartSeas WITH SmartSeas Savings with SmartSeas
A. Time-to-repair / delay (downtime-6.6 hrs @$35k/day) $ 9,625 $ 1,604 $ 8,021
B. Dispensation & admin $ 2,000 $ 0 $ 2,000
C. Extra tug assistance $ 8,000 $ 0 $ 8,000
D. Repair method - service technician + spares $ 15,300 $ 300 $ 15,000
E. PSC detention (risk-adjusted) $ 4,000 $ 0 $ 4,000
F. Oil-major screening rejection (risk-adjusted) $ 5,250 $ 0 $ 5,250
G. External audit re-inspection (risk-adjusted) $ 900 $ 0 $ 900
TOTAL Tangible Savings (per incident) $ 45,075 $ 1,904 $ 43,171

Annual Tangible Value (Fleet Level)

Metric Value Formula / Source
Incidents (Similar incidents per year) 4 Average as per client data
Per-similar incident savings $ 43,171 Tangible Savings (per incident)
Annualized tangible value $ 172,684 Incidents x Per-incident savings
$
Per-incident savings

43,171

$
ROI / incident

40,171

$
Annual cost / ship

3,000

@ 250/ship/month
$
Avg ROI

160,684

for 4 incidents