AIM control offers the bunker investigation n bunker detective is to avoid turning a disagreement into a dispute because of fuel losses at the time of bunker shipboard and delivery losses due to pilferage.
Reasons for inviting AIM Control’s bunker investigator by a charterer are different of quantity of fuels (bunker).
Reasons for inviting AIM Control’s bunker surveyor by a Ship Owner are identify of quantity of fuels remained on board (R.O.B),
The end purpose can be only one – to prevent losses because fuel oil expenses are of their budget.
Hidden Tanks
Fuel Frothing
Fuel Log Integrity
Magic Pipes
Tank Transfers while Bunkering
Tampered Measuring Devices
Off Hire of ship
Bunkering (pumping)
Rechecking of bunker quantity (after bunkering, after a voyage)
Calculating of consumption of Main Engine and Generators
07 Factors for the Loss of bunker
The vessel's crew & staff (on un trust & non-experience)
Deficiency experience of the surveyor
Deficiency of the vessel on list / trim corrections onboard
No full checking of all 6 drafts accurately
Malpractices by either party whether the ship or the barge
Bunker tank(s) capacity is different from vessel calibration table (after drying dock, tanks repaired)
No checking for Net Volume of tanks.
Risks & Loss reducing in Bunker Investigation Detection survey Inspection services
Checking of all valves to bunker tanks of the barge and ship to shut before gauging
Inter-tank transfers (gravitating of fuel)
Checking flow meter tampering and quantity measurements
Checking pipe-work tampering, bypass connections etc.
Checking tank calibration tables
Checking sounding tapes, temperature equipment
Inflated volume of tank during gauging
Sealing of QCV (quick closing valves) in engine room to storage tanks during bunkering operations
Checking of fuel density and weight relationship
Checking of fuel temperature and volume relationship
Checking of Zero Dip Volume (un-pumpable fuel in empty tanks)
Under-Declaring actual ROB and Supplying of Fuel
Bunker Dispute Resolution Check List
Exact date/time/location and quantity in dispute recorded?
C/E advised not to allow hose disconnection?
Commercial operator management office contacted immediately for advice?
C/E advised not to sign BDN unless advised by the Principals?
Agent notified and pilot boarding postponed if applicable?
All written evidence is immediately preserved, even scratch notes?
Photographs (where permitted) taken as evidence?
Bunker delivery hose checked blown-through and clear?
QCV (quick closing valves) in engine room to storage tanks (if sealed prior bunkering) still intact?
Drafts visually checked again; trim corrected and documented?
List ascertained again and verified by clinometers; list corrections applied and documented?
Bunker tank modifications (if any) ascertain and revised calibration table for the same sighted?
Calibration tables checked for tampering, corrections, insertions, loose pages?
Tank calibration tables checked for Class endorsement?
Number of tanks / locations verified from Tank Arrangement Plan?
Tank capacities verified from Tank Capacity Tables (Machinery Part)?
Sounding tape / bob checked for condition, tampering, alteration if not using own equipment?
Temperature thermometers checked for tampering if not using own equipment?
All valves to bunker tanks checked shut on both the barge and ship before re-gauging?
Reference heights / gauging heights verified from calibration tables and same checked against actual measurements during gauging?
All tanks visually checked for Cappuccino Bunkers?
At least three consecutive gauges taken for each tank and average value used?
Inside of sounding pipes checked for dissimilar metals?
Sounding pipe flanges/coupling/bolts checked for tampering?
Level of oil on the tape accurately ascertained?
Density used by barge and vessel the same?
Drafts / list re-checked if loading/discharging/ ballasting operations are been carried out at rates to cause appreciable change in trim / list?
Entire before and after delivery calculations re-checked for correct interpolation and jointly verified by the C/E and the surveyor?
All non-nominated tanks re-checked for any increase / decrease of sounding /ullage?
All ballast tanks, cofferdams, void spaces checked for any contamination/leakages?
If the discrepancy still remains; supplier's Stock Movement Log Book scrutinized / copies obtained to ensure that the original supplied quantity tallies with the quantity at the time of opening gauge?
Barge Vessel Experience Factor (VEF) records obtained?
C/E advised to issue letter of protest for each incident and have it acknowledged by the barge?
The surveyor given his own detailed statement of facts leading to the short delivery?
Photocopies of all relevant pages of the calibration tables obtained?
AIM Control offer the bunker investigation n bunker detective services to prevent the loss of bunker fuel under the qualified bunker detective is impartial, independent quantity measurement and inspection services for marine fuels with a detailed bunker survey report, assuring the fuel delivery and report any bunker shortage.