Compliance Documents Reference

PlaneConnection tracks maintenance compliance documents across the fleet, covering Airworthiness Directives (ADs), Service Bulletins (SBs), Required Inspection Items (RII), FAA Form 337 filings, and other regulatory compliance records. This page documents the data structures, statuses, and regulatory requirements for each compliance document type.

Compliance document management requires maintenance_ops:read permission to view and maintenance_ops:write to create, submit, or modify records. For the regulatory context behind these requirements, see FAA Part 5 Explained.

AD/SB Compliance Tracking

Item Types

PlaneConnection tracks four categories of compliance items under the AD/SB compliance system:

Item Type	Description	Regulatory Basis
Airworthiness Directive (AD)	Mandatory corrective action issued by the FAA when an unsafe condition exists in a product. Compliance is legally required.	14 CFR Part 39
Service Bulletin (SB)	Recommended action issued by the manufacturer. May become mandatory if referenced by an AD.	Manufacturer guidance
Certification Maintenance Requirement (CMR)	Mandatory tasks identified during type certification that must be performed at specified intervals.	14 CFR 25.1309
Engineering Change	Design modification requiring tracking for configuration management.	Operator internal

AD/SB Statuses

Each compliance item carries a status reflecting its current disposition:

Status	API Value	Description
Open	`open`	Item has been identified as applicable to one or more aircraft but compliance action has not been initiated.
Complied	`complied`	Compliance action has been completed and documented. Includes the compliance date, method, and reference to the work order or logbook entry.
Recurring	`recurring`	AD or SB requires repetitive compliance at specified intervals. The system tracks both initial compliance and recurring due dates.
Not Applicable	`not_applicable`	Item has been reviewed and determined not applicable to the operator’s aircraft (different serial number range, modification status, etc.). Requires documented justification.

AD/SB Status Lifecycle

AD/SB Compliance Statistics

The compliance dashboard displays real-time statistics:

Metric	Description
Total	All tracked AD/SB items across the fleet.
Open	Items requiring compliance action.
Complied	Items with completed one-time compliance.
Recurring	Items on repetitive compliance schedules.
Not Applicable	Items reviewed and determined N/A.

Compliance Record Fields

When marking an AD/SB as complied, the following fields are captured:

Field	Type	Required	Description
`compliance_date`	Date	Yes	Date the compliance action was performed.
`compliance_method`	String	Yes	How compliance was achieved (e.g., “Inspection per AD instructions”, “Modification per SB”).
`work_order_ref`	String	No	Reference to the work order under which the compliance was performed.
`logbook_entry_ref`	String	No	Reference to the maintenance logbook entry documenting the work.
`performed_by`	String	Yes	Name and certificate number of the person who performed the work.
`notes`	Text	No	Additional compliance notes or remarks.

Required Inspection Items (RII) Catalog

Regulatory Basis

14 CFR 135.427 requires Part 135 operators using a continuous airworthiness maintenance program (CAMP) to designate Required Inspection Items — those maintenance tasks that, if performed improperly or with incorrect parts, could result in a failure, malfunction, or defect endangering safe operation. Key requirements under 14 CFR 135.427:

The operator must prepare and maintain a list of RII items
Each RII requires a separate inspection by a person other than the one who performed the work (14 CFR 135.427(b)(3))
The inspector must hold Required Inspection Authorization (RIA) granted by the operator
RII items must be reviewed and updated as the fleet composition or maintenance program changes

RII Catalog Structure

Each RII item in PlaneConnection includes:

Field	Type	Description
`item_number`	String	Sequential identifier within the operator’s RII catalog (e.g., “RII-001”).
`description`	Text	Detailed description of the inspection item and the safety concern it addresses.
`aircraft_type`	String	Aircraft type or model to which this RII applies.
`ata_chapter`	String	ATA 100 chapter code identifying the affected system.
`inspection_type`	String	Type of inspection required (e.g., “visual”, “NDT”, “operational check”, “functional test”).
`interval_hours`	Number	Inspection interval in flight hours (if applicable).
`interval_cycles`	Number	Inspection interval in landing cycles (if applicable).
`interval_months`	Number	Inspection interval in calendar months (if applicable).
`requires_ria`	Boolean	Whether the inspection requires a person with RIA delegation. Always `true` for RII items.

RII Inspection Workflow

An RII inspection must be performed by a person other than the individual who performed the maintenance work. The inspector must hold a current Required Inspection Authorization from the operator. PlaneConnection validates this separation-of-duties requirement during the work order verification step.

FAA Form 337 Requirements

When Form 337 Is Required

FAA Form 337 (Major Repair and Alteration) must be filed for any major repair or major alteration as defined in 14 CFR Part 43, Appendix A.

Category	Definition	Examples
Major Repair	A repair that, if improperly done, might appreciably affect weight, balance, structural strength, performance, powerplant operation, flight characteristics, or other qualities affecting airworthiness.	Wing spar repair, engine case weld, flight control surface rework
Major Alteration	An alteration not listed in the aircraft, aircraft engine, or propeller specifications that might appreciably affect those same qualities.	Avionics suite upgrade, cargo conversion, supplemental type certificate (STC) installation

Form 337 Record Fields

Field	Type	Required	Description
`form_number`	String	Yes	FAA Form 337 tracking number.
`aircraft_id`	String	Yes	Aircraft registration (tail number).
`serial_number`	String	Yes	Aircraft serial number.
`type`	Enum	Yes	`major_repair` or `major_alteration`.
`description`	Text	Yes	Description of the repair or alteration performed.
`data_approval`	String	Yes	Approved data used (STC, DER-approved data, AC 43.13, manufacturer data).
`performed_by`	String	Yes	Name and certificate number of the person performing the work.
`approved_by`	String	Yes	Name and certificate number of the authorized inspector (IA) who approved the work.
`completion_date`	Date	Yes	Date the repair or alteration was completed.
`faa_district_office`	String	No	FSDO where the Form 337 was filed.
`filed_date`	Date	No	Date the form was submitted to the FAA.

Per 14 CFR 43.9(a), the operator must retain one copy of each Form 337 with the aircraft’s maintenance records. PlaneConnection stores the form data and supports attaching a scanned copy of the signed original. Record integrity hashing (SHA-384) ensures the digital record has not been tampered with after entry.

Compliance Document Types

The compliance documents system in PlaneConnection covers a broader set of maintenance records beyond AD/SB tracking:

Document Type	Description	Regulatory Reference
Work Order	Completed and verified work order records.	14 CFR 43.9
FAA 8130-3	Authorized Release Certificate for parts (domestic) or EASA Form 1 (international).	14 CFR 21.303
Logbook Entry	Maintenance logbook entries per 14 CFR 43.9 content requirements.	14 CFR 43.9
Form 337	Major Repair and Alteration records.	14 CFR 43.9(a)
AD Compliance	Airworthiness Directive compliance records.	14 CFR Part 39
SB Compliance	Service Bulletin compliance records.	Manufacturer guidance

Document Statuses

Compliance documents follow a review workflow:

Status	API Value	Description
In Queue	`in_queue`	Document submitted and awaiting initial review.
Pending Review	`pending_review`	Under active review by the compliance team.
Accepted	`accepted`	Document reviewed and accepted as compliant.
Rejected	`rejected`	Document rejected. Requires correction and resubmission.
Archived	`archived`	Document has been archived after acceptance. Retained per 14 CFR 91.417 retention requirements.

Document Review Lifecycle

Record Retention

14 CFR 91.417 specifies minimum retention periods for maintenance records:

Record Type	Retention Period	Regulation
Maintenance, preventive maintenance, and alteration records	Until the work is superseded or the aircraft is sold	14 CFR 91.417(a)(1)
Total time in service (airframe, engine, propeller)	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(i)
Current status of life-limited parts	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(ii)
Time since last overhaul (items with TBO)	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(iii)
Current inspection status and due dates	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(iv)
AD compliance status	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(v)
Major alteration Form 337 records	Indefinite (transferred with aircraft)	14 CFR 91.417(a)(2)(vi)

PlaneConnection retains all compliance documents indefinitely with tamper-evident hash chain protection. Soft-deleted records are preserved in the database for regulatory compliance. See Record Integrity Anchors for the technical details of the 5-layer integrity system.

Work Order Statuses

How work orders progress through completion and verification.

Record Integrity Anchors

SHA-384 hash chains and blockchain anchoring for tamper-evident records.

Maintenance Data Model

Data flow between compliance documents, work orders, and other modules.

SMS Reference

SmartScore

Operations Reference

FBO Reference

Maintenance Reference

Operational Reports

Portal Reference

Platform Reference

API Reference

AD/SB Compliance Tracking

Item Types

AD/SB Statuses

AD/SB Status Lifecycle

AD/SB Compliance Statistics

Compliance Record Fields

Required Inspection Items (RII) Catalog

Regulatory Basis

RII Catalog Structure

RII Inspection Workflow

FAA Form 337 Requirements

When Form 337 Is Required

Form 337 Record Fields

Compliance Document Types

Document Statuses

Document Review Lifecycle

Record Retention

Work Order Statuses

Record Integrity Anchors

Maintenance Data Model

​AD/SB Compliance Tracking

​Item Types

​AD/SB Statuses

​AD/SB Status Lifecycle

​AD/SB Compliance Statistics

​Compliance Record Fields

​Required Inspection Items (RII) Catalog

​Regulatory Basis

​RII Catalog Structure

​RII Inspection Workflow

​FAA Form 337 Requirements

​When Form 337 Is Required

​Form 337 Record Fields

​Compliance Document Types

​Document Statuses

​Document Review Lifecycle

​Record Retention

​Related

Work Order Statuses

Record Integrity Anchors

Maintenance Data Model

AD/SB Compliance Tracking

Item Types

AD/SB Statuses

AD/SB Status Lifecycle

AD/SB Compliance Statistics

Compliance Record Fields

Required Inspection Items (RII) Catalog

Regulatory Basis

RII Catalog Structure

RII Inspection Workflow

FAA Form 337 Requirements

When Form 337 Is Required

Form 337 Record Fields

Compliance Document Types

Document Statuses

Document Review Lifecycle

Record Retention

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