767 weight and balance
Boeing 767 family weight and balance records review
This review confirms that a Boeing 767's current weight and balance statement follows from a traceable chain of weighing reports and configuration amendments. It is run for a lessor, airline, or asset manager working a specific 767 tail through diligence or a records review. The work reconciles the weighing history, equipment changes, and modification-driven amendments against the current statement, then flags any amendment lacking a basis or any drift from the last weighing. You receive a weight and balance status reconciled to source, an exception list of unsupported amendments, and a closure plan for the gaps.
When this review is needed
- A 767 is entering diligence and the current weight and balance statement has to trace to a supported weighing.
- An equipment change or modification altered empty weight and the amendment cannot be tied to a basis.
- A freighter conversion changed the loading configuration and the statement has to reflect it.
- A buyer wants the empty weight and centre of gravity confirmed against the weighing history.
The problem
The weight and balance statement drives the loading the aircraft can carry, and it is only as sound as the chain of weighings and amendments behind it. On a 767 that has taken on equipment changes, cabin reconfigurations, and modifications over decades, the current statement is the sum of amendments, and an amendment applied without a basis, or a drift that no weighing supports, leaves the empty weight and centre of gravity resting on numbers the file cannot back.
What gets reviewed
- The current weight and balance statement reconciled to its supporting weighings
- Weighing reports with dates, method, and results tied to the configuration then
- Equipment changes reflected as amendments to the empty weight and moment
- Modification and conversion amendments matched to their approval basis
- Loading and configuration documents consistent with the current statement
- Amendments without a basis or a drift no weighing supports logged as open items
Scope this review
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What gets validated
- The current statement follows from the last weighing plus traceable amendments
- Each weighing report records the method, date, and configuration at the time
- Equipment and modification changes carry amendments with an approval basis
- Empty weight and centre of gravity reconcile across the amendment chain
- The loading configuration on the statement matches the recorded configuration
Evidence normally required
- The current weight and balance statement
- Weighing reports across the aircraft's history
- Equipment change and modification records affecting weight
- Freighter-conversion documentation where applicable
- The current configuration and loading documents
Common discrepancies
- A weight amendment applied with no basis on file
- An empty weight that drifts across amendments with no weighing to support it
- A modification that changed weight without a corresponding amendment
- A loading configuration on the statement inconsistent with the recorded configuration
What is at stake
A weight and balance statement that does not trace to a supported weighing undercuts the loading data an operator relies on, and at a transaction it becomes an item the buyer requires reconciled before acceptance. A modification that changed weight without a matching amendment leaves the statement understating or overstating the empty weight, which a receiving operator has to correct before the aircraft can be loaded to plan.
Move from findings to resolution
Move from findings to a documented resolution path.
How the work runs
Anchor to the last weighing
Identify the most recent supported weighing and the configuration it was taken in.
Trace the amendments
Follow each equipment and modification change forward as an amendment with a basis.
Reconcile the current statement
Confirm the empty weight and centre of gravity follow from the weighing plus amendments.
Flag the unsupported
List amendments with no basis and drift no weighing supports, and note whether a re-weigh is needed.
What the buyer receives
- A weight and balance status reconciled to the supporting weighings
- An exception list of unsupported amendments and unexplained drift
- A closure plan for the amendments that can still be traced to a basis
Who uses the output
- Asset managers confirming the loading data the tail is valued on
- Records teams reconciling the amendment chain before the file goes to a buyer
- Continuing-airworthiness staff preparing the statement for a receiving operator
How the work fits into the transaction or program
The weight and balance statement ties back to the modification and configuration records, so this review runs alongside them and feeds the acceptance a receiving operator requires. Unsupported amendments route into remediation, and any drift that no weighing supports is flagged so a buyer or receiving operator knows whether a re-weigh is needed before the aircraft is loaded to plan.
Aircraft-specific considerations
A 767 that has served for decades has been re-weighed and amended many times, and freighter conversion changes the loading configuration substantially, adding main-deck cargo provisions that the statement has to reflect. Long service life means older weighings sit only on paper, so the amendment chain reaches back through archived reports to the last full weighing.
Jurisdiction-specific considerations
Weighing and amendment practice differs between an FAA operator and an EASA CAMO, and a receiving operator may require a re-weigh or a reconciled statement on its own terms. The review notes where the weight and balance record will need rework or a fresh weighing for the receiving register.
Regulatory limits
The review reconciles the weight and balance statement against its supporting records. It does not weigh the aircraft, approve an amendment, or determine that the loading data is airworthy.
What this review does not cover
- Physically weighing the aircraft or re-establishing empty weight
- Approving any weight and balance amendment
- Any airworthiness determination on the loading data
Specific to this review
- The current statement is the sum of amendments since the last full weighing, so a single unsupported amendment propagates into the empty weight the operator loads against.
- Freighter conversion changes the loading configuration substantially, so the conversion amendment has to reconcile against main-deck cargo provisions.
- A weight drift that no weighing supports usually means a re-weigh is the honest fix, and flagging it early lets a buyer plan for it.
- Older weighings on a long-served 767 sit only on paper, so the amendment chain reaches back through archived reports.
Sources
U.S. Government (eCFR). Maintenance recordkeeping content and approval-for-return-to-service requirements, including 43.9, 43.11, and Appendix B.
U.S. Government (eCFR). Records an owner or operator must keep, including total time in service, current status of life-limited parts, and AD compliance.
European Union / EASA. Continuing airworthiness, maintenance records, CAMO responsibilities, and the airworthiness review process in the EASA system.
Frequently asked questions
When does the review recommend a fresh weighing rather than a records fix?
When the empty weight drifts across the amendment chain with no weighing to support it, or when unsupported amendments accumulate to the point that the current statement cannot be reconciled, a re-weigh is the honest fix. The review does not perform the weighing, but it identifies when one is needed so a buyer or receiving operator can plan for it.
Relevant glossary terms
Related pages
Where this fits
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