Airbus A330 family non-routine closure records review

When this review is needed

• An A330 is transferring and the buyer will trace each non-routine to its documented closure.
• A heavy check generated non-routines whose corrective actions have not been confirmed complete.
• A finding was dispositioned for deferral and its deferral basis has to be verified as still valid.
• The non-routine register lists items whose final sign-offs are missing from the file.

The problem

Non-routines are where the real condition of an A330 shows up, because they capture what a check found beyond the planned work. A defect card can be raised and dispositioned but never carried through to a documented corrective action and a final sign-off, so the register shows a finding that reads closed while the evidence stops halfway. On a widebody heavy check the non-routine count is high, and a half-closed item hides among the ones that closed cleanly.

What gets reviewed

• Each non-routine finding traced from the defect card to its closure
• Engineering dispositions confirmed for findings that required them
• Corrective-action entries documenting the work performed against each finding
• Final sign-offs and inspection evidence closing each corrective action
• Deferred findings checked for a valid deferral basis and interval
• The register reconciled so every raised finding has a documented outcome

What gets validated

• Each raised non-routine traces to a corrective action and a final sign-off
• Findings requiring engineering disposition carry that disposition in the file
• Corrective actions reference the approved data or instruction they were performed to
• Deferred findings show a valid deferral basis and a tracked interval
• The register accounts for every finding, with none left open without an outcome

Evidence normally required

• The non-routine register for the check or period under review
• Defect cards and the findings that raised them
• Engineering dispositions for the findings that needed them
• Corrective-action entries and final sign-offs
• The deferral records for any findings carried forward

Common discrepancies

• A non-routine dispositioned but never carried to a documented corrective action
• A corrective action with no final sign-off closing it
• A deferred finding whose deferral basis or interval has lapsed
• A finding on the register whose defect card is missing from the file

What is at stake

A non-routine without documented closure leaves an open question about whether a real defect was actually corrected, which a buyer treats as an open item on the aircraft. A finding dispositioned for deferral whose basis has lapsed can put the aircraft outside its own deferral terms, and a corrective action with no final sign-off cannot prove the repair was completed and inspected.

How the work runs

What the buyer receives

• An exception list of non-routines without documented closure
• A source map of the register against the closure evidence
• A closure plan sequencing the corrective-action and sign-off recovery

Who uses the output

• Continuing-airworthiness teams confirming findings were resolved with evidence
• Asset managers reading open non-routine exposure into the value of the aircraft
• Buyers tracing each finding to closure before they accept the aircraft

How the work fits into the transaction or program

Non-routine closure sits alongside the task-card set, because findings are raised against routine work, and it feeds the redelivery file a transfer rests on. The review runs while the corrective actions are recent, so a missing sign-off can be recovered before the people who performed the work disperse.

Aircraft-specific considerations

A330 non-routines cluster around the structural and corrosion findings that long-haul utilization and cabin reconfiguration surface during heavy checks. Those are the findings most likely to need an engineering disposition and approved-data corrective action, so they are the ones where a half-closed item carries the most exposure and where the deferral basis is most worth re-checking.

Jurisdiction-specific considerations

An A330 whose non-routines were dispositioned under one authority's oversight and is transferring to another requires the deferral and disposition basis to be acceptable to the receiving CAMO. The review notes where a deferred finding needs re-evaluation before the receiving operator accepts the aircraft.

Regulatory limits

The review confirms non-routine findings were dispositioned and closed with evidence. It does not disposition a finding, perform a corrective action, sign off a repair, or make an airworthiness determination on the aircraft.

What this review does not cover

• Dispositioning any finding or performing any corrective action
• Signing off or re-inspecting any non-routine closure
• Judging whether a closed finding leaves the aircraft airworthy

Specific to this review

• A non-routine that reads closed on the register but stops at the disposition is the most common half-closure, because the corrective action and sign-off are separate steps that can be skipped.
• A lapsed deferral is worse than an open finding, because the aircraft is operating outside its own deferral terms while the status reads acceptable.
• Structural and corrosion findings on an A330 usually need an engineering disposition, so those are the non-routines where the approved-data reference matters most.

Sources

Frequently asked questions

Relevant glossary terms

Related pages

Where this fits