Forwarder Response Policy When the Cause of Cargo Damage Is Unknown

In cargo claims, the cause of loss is not always clear at the time the damage is discovered. It may be obvious that the cargo is damaged, wet, short, rusty, moldy, or otherwise abnormal, but it may not be clear where, why, or under whose custody the problem occurred.

For forwarders, the important point is not to do nothing simply because the cause is unknown. The practical task is to manage the situation while the cause remains unknown.

If time passes without proper handling, evidence may disappear, notice deadlines may expire, survey opportunities may be lost, and recovery against carriers, NVOCCs, warehouses, delivery companies, or other parties may become difficult.

This article explains how forwarders should handle cargo claims where the cause is unknown, including fact checking, evidence preservation, notification to related parties, insurance communication, and explanation to the shipper.

There Are Different Types of “Unknown”

When the cause of a cargo accident is unknown, the issue should be divided into three categories.

The first category is where the stage of occurrence is unknown. It is not clear whether the damage occurred during ocean transport, CFS handling, port handling, inland delivery, warehouse storage, or after delivery at the consignee’s premises.

The second category is where the actual cause of damage is unknown. The issue may be external impact, insufficient packing, inherent nature of the cargo, temperature or humidity control failure, cargo shifting, wetting, condensation, or another cause.

The third category is where the responsible party is unknown. Because multiple possible causes or stages remain open, it may be unclear whether responsibility lies with the carrier, NVOCC, forwarder, warehouse operator, delivery company, shipper, consignee, or packing party.

If these three issues are mixed together, the response may become incorrect. For example, deciding the responsible party before identifying the stage of occurrence, or confirming insurance recovery before understanding the cause of damage, may create problems in later explanations.

What Happens If Time Passes While the Cause Remains Unknown

Even when the cause is unknown, time does not stop.

Notice requirements after cargo delivery, B/L notice conditions, time bars against carriers, notification to cargo insurers or forwarder liability insurers, and survey arrangements may become urgent before the cause is identified.

As time passes, cargo may be moved, packing materials may be discarded, photo opportunities may be lost, containers may be returned, and warehouse or delivery records may become harder to verify.

Therefore, even where the cause remains unclear, the forwarder should consider sending rights-preserving notices, preserving evidence, and securing investigation opportunities.

Waiting until the cause is fully identified before sending any notice may be too late. Precisely because the cause is unknown, the forwarder should first secure the entrance to investigation.

The First Step Is Not Guessing the Cause, but Preserving the Evidence

In an unknown-cause claim, the first step is not to guess the cause. The first step is to preserve the evidence and fix the factual record.

The forwarder should secure the date and time of discovery, place of discovery, person who discovered the damage, cargo condition, photos, videos, delivery receipt, POD, devanning records, warehouse receiving records, delivery records, B/L, House B/L, Master B/L, Commercial Invoice, and Packing List.

If the forwarder decides too early that “the carrier is responsible,” “the packing was defective,” or “the delivery company made a mistake,” the evidence collection may become biased.

At the unknown-cause stage, it is important to keep multiple possibilities open and collect documents that can later be used to verify each possibility.

Narrowing Down the Stage of Occurrence

The next step is to narrow down the possible stage of occurrence.

The forwarder should check whether the damage may have existed before shipment, occurred during ocean transport, occurred at CFS or CY, occurred during inland delivery, or occurred after delivery.

For FCL cargo, container number, seal number, vanning records, devanning records, container appearance, and internal photos are especially important.

For LCL cargo, CFS receiving records, sorting records, co-loader records, import CFS release records, and delivery company pickup records are important.

Even if the stage cannot be finally identified, simply organizing which stages are more likely and which are less likely can greatly improve communication with the shipper, insurer, and related parties.

Narrowing Down the Cause of Damage

In parallel with the stage of occurrence, the forwarder should review the possible cause of damage.

For physical damage, check impact marks, cargo shifting, insufficient securing, dropping, shock, and handling errors. For wet damage, check seawater, rainwater, condensation, moisture from the container floor, and moisture inside the packing.

For rust, mold, discoloration, odor transfer, or quality deterioration, check the inherent nature of the cargo, packing condition, pre-shipment condition, temperature and humidity control, transit period, and storage condition.

If the forwarder describes the case too early as “damage during transport,” it may become difficult to revise the explanation later if insufficient packing, inherent vice, or pre-shipment condition becomes relevant.

At the initial stage, safer expressions include “damage reported in relation to the shipment,” “abnormality confirmed after delivery,” or “loss currently under investigation.”

Notify Related Parties Even If the Cause Is Unknown

Even where the cause is unknown, the forwarder should consider notifying related parties.

Potential recipients may include the carrier, NVOCC, ocean carrier, CFS operator, warehouse operator, delivery company, overseas agent, cargo insurer, or forwarder liability insurer.

The important point is not to state liability as if it has already been determined.

A practical notice may state that damage has been reported, that the cause and stage of occurrence are still under investigation, and that the notice is being sent to preserve rights.

Sending a notice while the cause is unknown does not mean accusing the recipient. It is a practical step to preserve records and investigation opportunities.

How to Explain the Situation to the Shipper

The shipper may ask for a quick answer even when the cause of damage is not yet known.

In this situation, the forwarder should not simply say, “We do not know.” At the same time, the forwarder should not explain uncertain matters as if they were confirmed facts.

A practical explanation may be:

“At this stage, the place of occurrence and the cause of damage have not yet been confirmed. We will first review the delivery records, photos, POD, devanning records, delivery records, and whether insurer notification is required, and then organize the possible causes.”

Another useful expression is:

“We cannot determine liability while the cause is still unknown. However, we will proceed with evidence preservation and notice to relevant parties first.”

The forwarder may also say:

“Depending on the investigation results, we will organize the handling policy toward the carrier, NVOCC, delivery company, insurer, or other related parties.”

The key is to acknowledge that the cause is not yet known while clearly explaining what is being checked.

Sample Notice to Carrier or NVOCC

When notifying a carrier or NVOCC, the forwarder should clearly state that the matter is under investigation and avoid determining liability.

A practical wording is:

“We hereby notify you that damage to the subject cargo has been reported. The cause and place of occurrence are currently under investigation. We reserve all rights and request that you preserve all relevant records.”

For a more cautious notice, the following sentence may be added:

“This notice is issued for the purpose of preserving our rights and shall not be construed as an admission of liability or as a determination of the cause of loss.”

At the unknown-cause stage, wording that avoids premature conclusions is essential.

How to Explain the Case to Insurers

If cargo insurance or forwarder liability insurance may be involved, the forwarder may need to notify the insurer even before the cause is identified.

When communicating with insurers, the forwarder should separate confirmed facts from matters still under investigation.

For example, the forwarder may state that damage was discovered after delivery, that minor impact marks are visible on the outer packaging, that there was no remark on the delivery receipt, that unpacking photos have been obtained, and that the need for survey should be confirmed.

Notification to the insurer at the unknown-cause stage does not mean that an insurance claim has already been determined. It is an entry point for survey arrangements, evidence preservation, and review of recovery possibilities.

When Can a Case Be Treated as Unknown Cause?

Not every cargo accident can be fully explained.

Even after reviewing available documents, it may not be possible to identify the exact stage or cause of loss. In such cases, the forwarder may need to treat the case as an unknown-cause claim.

However, before doing so, the forwarder should confirm that minimum checks have been completed.

The following points should be reviewed:

• Whether shipment documents, B/L, Packing List, and Commercial Invoice have been checked.
• Whether delivery receipt, POD, devanning records, and warehouse receiving records have been checked.
• Whether photos, videos, and survey materials have been reviewed.
• Whether related parties have been notified and asked to preserve records.
• Whether cargo insurance or forwarder liability insurance notification has been considered.
• Whether responses from the carrier, NVOCC, delivery company, or warehouse operator have been reviewed.
• Whether the balance between claim amount and investigation cost has been considered.

If the cause still cannot be identified after these checks, the case may be organized as unknown cause. The next step may involve insurance handling, settlement, internal cost allocation, or abandonment of recovery, depending on the circumstances.

The important point is not to call a case “unknown cause” without investigation. The forwarder should record what was checked and what could not be confirmed.

Practical Example: Wet Damage Where the Cause Could Not Be Identified

Consider a case where, after delivery of import FCL cargo, the shipper reported that some cartons had water stains. There was no remark on the delivery receipt, and no external abnormality was reported on the delivery date.

The forwarder promptly asked the shipper to provide photos and checked the container number, seal number, devanning records, delivery records, and container appearance photos.

The photos showed water stains on some cartons. However, no clear water leakage mark was found on the container wall or ceiling. Wetness on the floor was limited, and it was not possible to immediately determine whether the cause was seawater, condensation, or water exposure during post-delivery storage.

The forwarder sent rights-preserving notices to the ocean carrier and delivery company, and also notified the cargo insurer. After checking whether a survey was required, the forwarder explained to the shipper that the cause and stage of occurrence were still under investigation and that no responsible party had been confirmed at that stage.

Later, even after survey, no clear external water ingress cause was identified. Possibilities such as storage condition and moisture inside the packing also remained.

Ultimately, the evidence was considered insufficient to clearly pursue carrier liability. The matter was handled mainly through cargo insurance and internal record keeping.

In this case, the fact that the cause could not be identified was not itself a failure. The important point was that, even while the cause remained unknown, the forwarder sent notices, preserved evidence, notified the insurer, and kept records that could later explain the handling process.

Key Takeaway

When the cause of a cargo accident is unknown, the forwarder should not simply leave the matter unresolved. The forwarder should first classify what is unknown.

The documents to check and the parties to notify will differ depending on whether the unknown issue concerns the stage of occurrence, the cause of damage, or the responsible party.

Even before the cause is identified, notice deadlines, evidence preservation, survey opportunities, and insurer notification may need to be handled.

In unknown-cause claims, the forwarder should avoid premature conclusions, collect records, notify related parties, and document the scope of investigation. Even if the case is ultimately treated as unknown cause, the forwarder should be able to explain how that conclusion was reached.