{"schema_version":1,"research_id":"eoa_inverse_innovation_exp06_external_evaluation_20260803","source_assessment_id":"representation_independent_interface_contract__aviation_aeronautics:P3:v0","cell_id":"representation_independent_interface_contract__aviation_aeronautics","search_queries":["site:faa.gov aircraft maintenance electronic records data migration integrity advisory circular 120-78","aviation maintenance records data quality inconsistent systems research","aircraft maintenance software configuration tracking utilization maintenance due API product","ATA Spec 2000 maintenance records data exchange standard configuration","eCFR 14 CFR 121.380 maintenance recording requirements current","EASA M.A.305 aircraft continuing airworthiness record system official PDF","site:swiss-as.com AMOS maintenance planning component tracking aircraft configuration product","site:rusada.com ENVISION aircraft maintenance planning configuration control records","site:ecfr.gov/current/title-14/chapter-I/subchapter-G/part-121/section-121.380","site:faa.gov/media AC 120-78B electronic recordkeeping PDF data integrity audit trail","aircraft maintenance digital records adopter need airline migration maintenance software case study","aviation maintenance data migration records system integrity case study MRO software","Cornell Law 14 CFR 121.380 maintenance recording requirements","govinfo 14 CFR 121.380 current maintenance recording requirements PDF"],"sources":[{"source_id":"S1","title":"14 CFR §121.380 Maintenance Recording Requirements and §121.380a Transfer of Maintenance Records","publisher":"U.S. Government Publishing Office / Federal Aviation Administration","url":"https://www.govinfo.gov/content/pkg/CFR-2024-title14-vol3/pdf/CFR-2024-title14-vol3-sec121-380.pdf","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"2024-01-01","accessed_at":"2026-08-03","claims_supported":["Part 121 certificate holders must retain current time-in-service, life-limited-part, overhaul, inspection, airworthiness-directive, and alteration status.","Specified maintenance records must be retained, transferred with an aircraft, and made available to FAA or NTSB representatives.","The certificate holder, rather than experimental software, retains the regulated recordkeeping responsibility."]},{"source_id":"S2","title":"AC 120-78B: Electronic Signatures, Electronic Recordkeeping, and Electronic Manuals","publisher":"Federal Aviation Administration","url":"https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_120-78B_FAA_Web.pdf","source_class":"OFFICIAL_GUIDANCE","publication_date":"2024-12-11","accessed_at":"2026-08-03","claims_supported":["FAA guidance calls for controlled access, preservation, prevention of corruption, backup, and software revision control for electronic records.","Revision control must address effects on record entry, display, access, and data quality.","Policies should preserve integrity and continuity when records move to a new system, potentially by briefly operating redundant systems.","FAA authorization or acceptance may be required before an operational electronic-recordkeeping system or relevant revision is implemented."]},{"source_id":"S3","title":"Easy Access Rules for Continuing Airworthiness: ML.A.305 Aircraft Continuing-Airworthiness Record System","publisher":"European Union Aviation Safety Agency","url":"https://www.easa.europa.eu/en/document-library/easy-access-rules/online-publications/easy-access-rules-continuing-airworthiness?erules-id=ERULES-1963177438-14301","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"2025-09","accessed_at":"2026-08-03","claims_supported":["Continuing-airworthiness records must contain current maintenance-program, life-limited-component, modification, repair, utilization, and deferred-maintenance status.","Installed-component records include identity, installation/removal references, and accumulated utilization.","Corrections must leave the original entry visible, supporting supersession rather than silent deletion.","The responsible owner or continuing-airworthiness organization controls the records, and an IT-only system needs backup and safeguards against unauthorized database alteration."]},{"source_id":"S4","title":"Adopting Aircraft Electronic Records, First Edition","publisher":"International Air Transport Association","url":"https://www.iata.org/contentassets/bf8ca67c8bcd4358b3d004b0d6d0916f/adopting-ac-electronic-records-1st-ed-2024.pdf","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"2024-01","accessed_at":"2026-08-03","claims_supported":["Two 2023 industry surveys documented incomplete digital adoption and mixed paper/electronic workflows.","IATA reports stakeholder agreement that electronic aircraft-maintenance records are imperative and calls for technology-agnostic rules, interoperability, portability, and standardized business rules.","The paper warns that clerical or maliciously inaccurate records can have serious safety consequences.","The survey shows operators use a heterogeneous mixture of general, aviation-specific, customized, internal, and partner-provided software."]},{"source_id":"S5","title":"ATA e-Business Program Standards","publisher":"ATA e-Business Program / Airlines for America","url":"https://ataebiz.org/standards/","source_class":"STANDARD","publication_date":"undated; current page accessed 2026-08-03","accessed_at":"2026-08-03","claims_supported":["Existing standards already cover maintenance-information exchange, electronic logbooks, allowable configuration, and aircraft-transfer records.","Spec 2000 Chapter 17 models and exchanges electronic-logbook data without requiring a specific implementation.","Spec 2400 defines machine-readable allowable configuration, while Spec 2500 includes business rules and XML for last-done/next-due status and installed-component status.","These standards are close prior art but focus mainly on information exchange and transfer datasets rather than a reusable black-box behavioral oracle for backend substitution."]},{"source_id":"S6","title":"Regulatory Compliance Module","publisher":"CORRIDOR / Continuum Applied Technology","url":"https://www.corridor.aero/regulatory-compliance-module/","source_class":"COMMERCIAL_FIRST_PARTY","publication_date":"2025-10-28","accessed_at":"2026-08-03","claims_supported":["A commercial product already maintains multiple aircraft configurations and scheduled-maintenance event records.","It tracks applicability, intervals, compliance status, component records, and forecast due events from utilization.","It coordinates master-event changes and flight-operations integration to reduce duplicate entry and errors, substantially overlapping the proposed ledger's functional surface."]},{"source_id":"S7","title":"Case Study: Endeavor Air—Managing Legacy MRO Systems","publisher":"Aircraft IT","url":"https://www.aircraftit.com/articles/endeavor-air-managing-legacy-mro-systems/","source_class":"AUTHORITATIVE_SECONDARY","publication_date":"2016-07","accessed_at":"2026-08-03","claims_supported":["Airline personnel described multiple MRO systems and different business processes as operationally difficult.","A 41-aircraft consolidation used aircraft baselines, load templates, isolated test and production environments, synchronization of dynamic records, repeated auditing, and data cleansing.","Eight dedicated personnel plus IT and vendor support worked on the transition, and approximately one million data points were audited.","The case demonstrates a credible adopter workflow and anchors resource estimates, but it did not evaluate a representation-independent contract or common sequence oracle."]},{"source_id":"S8","title":"Copa Airlines Selects GE Aviation for Digital Records Management","publisher":"GE Aerospace","url":"https://www.geaerospace.com/news/press-releases/digital-solutions/copa-airlines-selects-ge-aviation-digital-records-management","source_class":"COMMERCIAL_FIRST_PARTY","publication_date":"2019-02-19","accessed_at":"2026-08-03","claims_supported":["Copa Airlines is an identifiable adopter that selected integrated digital maintenance-record management for a nearly 100-aircraft fleet.","Copa's MRO-systems manager stated that the product met airline requirements and improved daily operational efficiency.","The deployed service connected maintenance systems, MROs, and lessors and reportedly managed records at very large scale."]}],"problem_evidence":{"support":"MODERATE","rationale":"The regulated importance of accurate configuration, utilization, maintenance-status, correction, retention, and transfer records is strongly established. IATA and Endeavor show heterogeneous systems, mixed workflows, migration burden, data cleansing, synchronization, and extensive auditing. FAA explicitly treats migration integrity and software effects on data quality as concerns. However, no source verifies the candidate's narrower allegation that the scoped operator's clients directly query shared tables, depend on row order/null sentinels, or produce divergent obligation answers after representation-only perturbations.","source_ids":["S1","S2","S3","S4","S7"]},"stakeholder_evidence":{"support":"STRONG","rationale":"Certificate holders and continuing-airworthiness organizations are identifiable responsible parties; FAA is an identifiable authorizer for applicable operational systems. IATA expresses industry-wide demand for digital, portable, technology-agnostic records, while Endeavor and Copa document named airlines investing in system consolidation or integration. No adopter has expressed demand specifically for an opaque abstract ledger plus property-based multi-backend oracle.","source_ids":["S1","S2","S3","S4","S7","S8"]},"prior_art":{"proximity":"ADJACENT_PRIOR_ART","closest_analogues":[{"name":"ATA Spec 2000 Chapters 17–18, Spec 2400, and Spec 2500","similarity":"Standardized, implementation-neutral exchange covers electronic logs, work packages, allowable aircraft configuration, installed-component status, and last-done/next-due maintenance status; Spec 2500 includes business rules.","remaining_difference":"The public material does not establish an opaque operational state machine with invariant-preserving evidence transitions, explicit conflict semantics, historical-revision queries, or one executable conformance oracle applied to alternative storage backends.","source_ids":["S5"]},{"name":"CORRIDOR Regulatory Compliance Module","similarity":"Commercially implements configuration, serialized-component, utilization, applicability, interval, compliance-status, and due-event functions that closely overlap the proposed ledger's observable answers.","remaining_difference":"It is a proprietary operational product, not a published representation-independent contract for interchangeable independent implementations; no shared sequence oracle or seeded-mutant evidence is disclosed.","source_ids":["S6"]},{"name":"Endeavor Air MRO-system consolidation practice","similarity":"Uses a baseline aircraft, isolated testing, templates, dynamic-record synchronization, data cleansing, repeatable loads, and extensive post-migration audits.","remaining_difference":"Acceptance centered on a specific migration and unified product; the case does not separate semantic equivalence from schema/load correctness through an abstract state model and reusable black-box oracle.","source_ids":["S7"]},{"name":"FAA AC 120-78B migration, integrity, and revision-control guidance","similarity":"Requires attention to preservation, corruption prevention, software effects on data quality, continuity, transfer integrity, backups, and controlled operational changes.","remaining_difference":"The guidance states assurance objectives but does not prescribe the candidate's abstract ledger, algebraic transition laws, differential model, or backend-substitutability rule.","source_ids":["S2"]}],"distinctive_claim_remaining":"For one pre-specified maintenance-obligation type, a storage-opaque evidence-state contract plus an independent reference model and common generated sequence suite will (a) reject seeded defects involving duplicate utilization, deletion of superseded evidence, insertion-order dependence, double installation, and silent conflict resolution and (b) preserve identical contract-level revisions, statuses, and explanations across two independently represented backends more reliably than schema validation, record counts, and sampled before/after reports. The claim is falsified if the baseline catches the same defects, valid implementations cannot agree without exposing representation, or contradictory evidence must be collapsed into a definite status.","confidence":"MODERATE"},"implementation_evidence":{"support":"MODERATE","rationale":"Existing standards and commercial systems demonstrate that configuration, component, utilization, compliance, exchange, and audit functions are technically implementable at airline scale. Endeavor demonstrates isolated migration testing, synchronization, cleansing, and auditing. FAA and EASA guidance make the required access, preservation, correction, backup, revision, and authority controls legible. The proposed abstract semantics, oracle coverage, integration with incumbent proprietary logic, and ability to classify real divergences have not been implemented or tested.","source_ids":["S2","S3","S5","S6","S7","S8"]},"scores":{"meaningful_impact":{"score":4,"rationale":"Maintenance status and life-limited-component records are required for airworthiness-release evidence and must remain inspectable and transferable; preventing silent semantic drift could be consequential, although realized safety or operational impact is unmeasured.","source_ids":["S1","S2","S3"]},"stakeholder_pull":{"score":4,"rationale":"IATA expresses broad demand for digital, interoperable records, and named airlines have funded consolidation and integration projects; pull for this exact contract mechanism is not demonstrated.","source_ids":["S4","S7","S8"]},"incremental_advantage":{"score":3,"rationale":"Sequence-level semantic testing plausibly adds coverage beyond schema, count, and sampled-report checks, but no comparative result shows that it outperforms existing vendor validation, standards-based exchange, or migration audit practice.","source_ids":["S2","S5","S7"]},"distinctiveness_plausibility":{"score":3,"rationale":"The executable representation-independent state-machine oracle is a credible remaining distinction, but standards and products already cover much of the data model, business-rule, configuration, and status surface.","source_ids":["S5","S6"]},"technical_implementability":{"score":4,"rationale":"The required data and workflows are already implemented in products and standards, and isolated migration/replay testing is established practice. Exact semantic extraction from proprietary incumbent rules remains difficult.","source_ids":["S5","S6","S7"]},"adoption_authority_feasibility":{"score":3,"rationale":"Operators can authorize isolated internal evaluation, but any operational recordkeeping change requires certificate-holder governance and potentially FAA acceptance or authorization; qualified personnel retain maintenance and release authority.","source_ids":["S1","S2","S3"]},"evidence_readiness":{"score":3,"rationale":"The next test is bounded and source-backed, but it needs proprietary histories, incumbent behavior, authority-approved meanings, and expert discrepancy classification unavailable through open web research.","source_ids":["S2","S7"]},"safety_net_benefit":{"score":4,"rationale":"A read-only shadow ledger that exposes conflicts and preserves originals aligns with regulatory integrity and correction principles and could fail safely if kept outside release workflows.","source_ids":["S2","S3"]},"scalability":{"score":3,"rationale":"Standards and deployed products show fleet-scale feasibility, but contract authoring and expert adjudication may have to be repeated for obligation classes, maintenance programs, jurisdictions, and legacy systems.","source_ids":["S5","S6","S8"]}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"50K_TO_250K","scope":"Eight-to-twelve-week isolated experiment for one obligation type and bounded synthetic or approved de-identified history: contract workshop, immutable model, incumbent adapter, generated sequence suite, five seeded mutants, leakage review, and maintenance-records adjudication.","confidence":"MODERATE","assumptions":["Approximately 2–4 part-time/full-time-equivalent software, test, maintenance-records, and planning specialists.","No production integration, regulated-system approval, or official-record mutation.","Existing test infrastructure and a legally usable incumbent interface are available."],"source_ids":["S2","S7"]},"initial_deployment_startup":{"band_2026_usd":"250K_TO_1M","scope":"One-aircraft-type or one-fleet shadow service covering several obligation classes, controlled data extraction, identity and access controls, audit storage, security review, authority documentation, training, and parallel comparison with the incumbent.","confidence":"LOW","assumptions":["A 6–12 month multidisciplinary effort.","Existing MRO licenses permit adapters and test extraction.","This is shadow deployment only, not replacement of the approved system of record."],"source_ids":["S2","S3","S7"]},"operational_launch":{"band_2026_usd":"1M_TO_5M","scope":"Production integration for a bounded fleet, including redundant operation, migration validation, operational monitoring, disaster recovery, vendor integration, configuration and maintenance-program rule coverage, user training, formal change control, and regulator-facing authorization evidence.","confidence":"LOW","assumptions":["Several internal and external systems must be integrated.","The launch is materially smaller than replacing the entire MRO platform.","The Endeavor case's eight-person core team, additional IT/vendor support, million-point audit, and multi-month transition are a reasonable order-of-magnitude analogue."],"source_ids":["S2","S7"]},"annual_recurring":{"band_2026_usd":"250K_TO_1M","scope":"Contract stewardship, rule-version review, regression and mutation testing, evidence/audit storage, incident response, access review, vendor adapters, training, and periodic authority-support work for a bounded fleet.","confidence":"LOW","assumptions":["A small permanent product/assurance team plus maintenance-domain reviewers.","Infrastructure uses existing enterprise hosting and identity services.","Fleet-wide or multi-jurisdiction expansion would increase the band."],"source_ids":["S2","S3","S7"]}},"verified_pipeline_gates":{"externally_supported_problem":{"status":"YES","reason":"Open evidence verifies that migration integrity, data quality, record continuity, mixed systems, synchronization, cleansing, and large audit workloads are real concerns, although the proposal's exact direct-table dependency remains unverified.","source_ids":["S2","S4","S7"]},"externally_credible_adopter_or_authorizer":{"status":"YES","reason":"Part 121 certificate holders and continuing-airworthiness organizations are responsible entities; FAA is an applicable authorizer, and Endeavor and Copa are named adopters of related system changes.","source_ids":["S1","S2","S3","S7","S8"]},"distinct_testable_incremental_claim":{"status":"YES","reason":"The proposal specifies observable cross-backend equality and predefined defect classes, with schema/count/sample-report checks as explicit comparators and clear failure conditions.","source_ids":["S5","S7"]},"bounded_next_evidence_step":{"status":"YES","reason":"One obligation type, bounded histories, two implementations, predefined mutations, read-only execution, contract-level outputs, and discrepancy categories make the step finite and reversible.","source_ids":["S2","S7"]},"no_unresolved_safety_or_authority_stop":{"status":"YES","reason":"A synthetic or approved de-identified shadow test can remain outside official records and release decisions. Operational use would require separate certificate-holder and possibly FAA authorization, so this gate applies only to the proposed first evidence step.","source_ids":["S1","S2","S3"]},"credible_cost_scope_and_range":{"status":"UNCERTAIN","reason":"The bands are scoped and anchored by an airline case involving eight dedicated staff, additional IT/vendor support, six months, and a million-point audit, but no source supplies prices for this narrower mechanism and proprietary integration complexity is unknown.","source_ids":["S7"]}},"next_evidence_step":"Secure one operator or MRO partner and authorized maintenance-records reviewer. Pre-register one obligation type; abstract operations, cutoff semantics, units, correction and conflict rules; the incumbent-wrapper, independent immutable-model, and schema/count/sample-report comparators; and acceptance thresholds. In an isolated environment, replay at least 100 curated edge-case histories plus generated sequences containing installations, removals, utilization, accomplishment, duplicates, supersessions, out-of-order arrivals, and conflicts. Require identical contract-level revisions, statuses, provenance explanations, and error categories between the two nominal implementations. Verify that the suite rejects every seeded implementation that double-counts utilization, deletes a superseded event, orders by insertion ID, double-installs a serialized component, or chooses one conflicting record silently. Audit outputs for row IDs, storage ordering, null/sentinel conventions, internal timestamps, status numbering, and diagnostic leakage. Classify every divergence with authorized reviewers. Falsify the problem if representation-only perturbations never change any scoped incumbent/client answer and no client depends on hidden fields; falsify the intervention if it misses any seeded defect, needs schema exposure, cannot make two known-valid implementations agree, or suppresses maintenance-relevant ambiguity.","blocking_evidence":["No dependency inventory shows whether actual scoped clients query tables, derived columns, row order, nulls, or locally recompute maintenance credit.","No controlled perturbation or replay demonstrates that logically equivalent representations currently produce different obligation answers.","No operator has adopted or requested the proposed representation-independent contract and shared conformance oracle.","The complete semantics for even one obligation type, including program applicability, units, cutoffs, corrections, conflicts, and authority, have not been elicited from authorized personnel.","No independent model, incumbent adapter, seeded-mutant suite, leakage audit, or comparative result exists.","Licensing, data-access, privacy, cybersecurity, retention, and regulator-acceptance constraints for a real partner remain unknown.","Cost bands lack vendor quotes and organization-specific integration estimates.","World novelty, patentability, freedom to operate, market size, and realized impact remain unmeasured."],"research_disposition":"PARTNERED_RESEARCH_PROGRAM","world_novelty_boundary":"This evaluation establishes only that public ATA standards, FAA/EASA requirements, commercial compliance software, digital-record platforms, and airline migration practice occupy substantial adjacent territory. It did not perform patent, source-code, proprietary-product, procurement, or exhaustive scholarly searches and therefore does not measure world novelty, patentability, freedom to operate, market size, or realized impact. The only remaining distinction assessed as plausible—not novel—is an executable, storage-opaque maintenance-evidence state contract used as a common semantic substitution oracle across independent backends.","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_version":0,"controller_recommendation":{"action":"STOP_EMPIRICAL_RESEARCH_NEEDED","repairable":false,"material_progress_observed":true,"progress_targets":["Obtain a named operator/MRO partner, data-use approval, and an authorized maintenance-records or continuing-airworthiness reviewer.","Complete a scoped client dependency inventory and representation-only perturbation test.","Pre-register one obligation contract, comparator behavior, mutation set, acceptance thresholds, and authority boundaries before observing results.","Implement the incumbent adapter and genuinely independent immutable reference model without shared rule code.","Demonstrate cross-backend agreement on valid histories and 100% rejection of the five predefined seeded defect classes.","Classify every divergence as implementation defect, contract gap, source-data ambiguity, or invalid abstraction through authorized expert review.","Produce organization-specific security, regulatory-acceptance, integration, and cost estimates before any operational-adoption decision."],"reason":"Bounded web research has established importance, credible actors, close standards/products, regulatory constraints, and a testable residual claim. The decisive missing evidence—actual hidden dependencies, semantic divergence under replay, oracle discrimination, expert-valid contract completeness, and operational integration cost—requires proprietary data, partner fieldwork, and live isolated testing rather than further bounded web search."},"proposal_index":3}