Boeing 747 task cards
Boeing 747 family task-card records review
This review examines the closed task-card set from a Boeing 747's checks and confirms each card was signed, stamped, and tied to the instruction it was raised against. It is run for the party evaluating the asset when the completeness of a check package drives the deal or the induction. The work reads routine cards, sign-offs, and inspection stamps, and confirms each card references a valid maintenance instruction. You receive an exception list of cards that do not close cleanly, a source map linking each card to its check and instruction, and a closure plan for the sign-offs that are missing or unclear.
When this review is needed
- A heavy check just closed and the buyer will read the task-card set as proof the check was actually done.
- A check package arrived thin and someone has to confirm every routine card was signed off.
- An induction depends on the last check package standing up card by card.
- A prior operator's cards reference instructions that are not in the file with the aircraft.
The problem
A 747 heavy check generates thousands of task cards, and the package that documents it is only convincing if every card closes. A card without a mechanic's sign-off, an inspection item without its stamp, or a routine card that points to an instruction nobody can produce all leave holes a diligence team will find. On a large check, those holes hide in volume until someone reads the set line by line.
What gets reviewed
- The closed task-card set reconciled to the check it documents
- Routine cards checked for the required mechanic and inspector sign-offs
- Inspection items confirmed against their stamps and dual-inspection requirements
- Each card's referenced maintenance instruction confirmed present and current
- Deferred or open items on the package tracked to their disposition
- Non-routine findings raised off routine cards traced to their own cards
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Send a representative, redacted record set and we will scope the review.
What gets validated
- Every routine card carries the mechanic and inspector sign-offs the task requires
- Inspection and dual-inspection items show the stamps the check demands
- Each card references a maintenance instruction that is present and at the right revision
- Cards that raised non-routine findings link to the non-routine cards that resolved them
- The card count reconciles to the check content, with no routine task silently dropped
Evidence normally required
- The closed task-card set for the check under review
- The check work scope or task list the cards were raised from
- The maintenance instructions the cards reference
- The non-routine cards raised during the check
- The stamp and authorization register for the personnel who signed
Common discrepancies
- A routine card missing the inspector sign-off the task required
- A card that references an instruction not present in the package
- A dual-inspection item with only one of the two required stamps
- A routine card that raised a finding with no non-routine card behind it
What is at stake
An unsigned card means the task cannot be shown to have been accomplished, which puts the whole check in question during a transaction or an induction. A card referencing an unavailable instruction cannot be verified at all, and reconstructing sign-offs after the crew has dispersed is far harder than catching them while the package is fresh.
Move from findings to resolution
Move from findings to a documented resolution path.
How the work runs
Reconcile to the check
Match the closed card set against the check work scope so no routine task is missing.
Check the sign-offs
Confirm each card carries the mechanic and inspector authorizations the task requires.
Follow the references
Confirm each card's maintenance instruction and any non-routine card it generated.
Flag the open cards
Flag cards that do not close and plan how each sign-off or instruction is recovered.
What the buyer receives
- An exception list of task cards that do not close cleanly
- A source map linking each card to its check, instruction, and any non-routine card
- A closure plan for the missing sign-offs and unavailable instructions
Who uses the output
- Records teams confirming a check package will hold up before it goes to a buyer
- Asset managers reading check completeness into the value of the aircraft
- Continuing-airworthiness teams inducting the aircraft on a verified check
How the work fits into the transaction or program
The review runs after a check closes and before the package is relied on in a sale or an induction. Its exception list drives correction of the missing sign-offs while the crew and shop are still reachable, and the reconciled card set becomes the evidence the check was actually accomplished.
Aircraft-specific considerations
A 747 heavy check produces one of the largest task-card volumes in commercial aviation, so the review is built to work at scale and sample by risk rather than reading every card with equal weight. Freighter aircraft add main-deck and cargo-system cards a passenger check would not carry, so the set is scoped to the variant and check level under review.
Jurisdiction-specific considerations
Sign-off and dual-inspection conventions differ between an FAA and an EASA maintenance system, so a card set built under one has to be read against the conventions of the register the asset is moving toward. The review notes where sign-off practice will need explanation for the receiving system.
Regulatory limits
The review reads the closed cards and reports which ones close cleanly. It does not re-accomplish a task, sign off a card, or determine that the check or the aircraft is airworthy.
What this review does not cover
- Re-performing any task behind a card
- Signing off or stamping any card
- Any airworthiness determination on the aircraft or the check
Specific to this review
- On a 747 heavy check the sheer card count is the concealment: a handful of unsigned cards hide in thousands until the set is read line by line.
- A routine card that spawned a non-routine finding is only complete when the non-routine card that resolved it is also in the set, and that link is where packages most often break.
- Dual-inspection items with a single stamp are a recurring gap, because the second stamp is easy to omit under check-exit time pressure.
Sources
U.S. Government (eCFR). Maintenance recordkeeping content and approval-for-return-to-service requirements, including 43.9, 43.11, and Appendix B.
Federal Aviation Administration. FAA guidance on making and keeping maintenance records and acceptable recordkeeping practices.
European Union / EASA. Continuing airworthiness, maintenance records, CAMO responsibilities, and the airworthiness review process in the EASA system.
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.
Frequently asked questions
Do you read every card on a heavy check?
The review reconciles the full set to the check scope so nothing is silently dropped, then samples by risk and reads the high-consequence cards in full. Structural, inspection, and non-routine-linked cards get the closest attention because that is where incomplete closure carries the most weight.
Relevant glossary terms
Related pages
Where this fits
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We will walk through your current state, the records or evidence involved, and a scoped first engagement.
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