This section captures essential aircraft identification and operational parameters to establish the maintenance context. Accurate recording ensures traceability and regulatory compliance.
Aircraft Registration
Aircraft Type & Model
Manufacturer Serial Number (MSN)
Total Flight Cycles (at start of maintenance)
Total Flight Hours (at start of maintenance)
Maintenance Event Start Date/Time (UTC)
Maintenance Event End Date/Time (UTC)
Maintenance Location (ICAO/IATA Code)
Operational Category
Commercial Air Transport
Cargo Operations
Business Aviation
Private Operations
Training/Flight School
Government/Military (Civilian Registry)
Document all personnel involved in maintenance activities, their qualifications, and authorization scope. This ensures accountability and demonstrates competent oversight.
Primary Maintenance Technician Full Name
Primary Technician License/Authorization Number
Primary Technician Approval Scope (Aircraft Type/Systems)
Supervising Certifying Staff Full Name
Supervisor License/Authorization Number
Were additional technicians involved?
Maintenance Organization Approval Number
Categorize the maintenance performed and reference all governing technical documentation. This establishes the regulatory and technical framework for the work accomplished.
Maintenance Category (Select all applicable)
Line Maintenance
Base Maintenance
A-Check Equivalent
B-Check Equivalent
Defect Rectification
Component Replacement
System Test/Calibration
Modification
Embodiment of Service Bulletin
Airworthiness Directive Compliance
Pre-Flight Inspection
Transit Check
Daily Check
Weekly Check
Work Order/Job Card Number
Were scheduled maintenance tasks performed?
Were unscheduled/defect rectification tasks performed?
Technical Document References (AMM, IPC, SRM, SB, AD, EO, etc.)
Systematically document the condition of aircraft systems, structures, and components inspected. Rate overall condition and detail any findings requiring corrective action.
Rate the condition of the following aircraft zones/systems (1=Poor, 5=Excellent)
Airframe Structure (fuselage, wings, empennage) | |
Powerplant & APU | |
Landing Gear & Brakes | |
Flight Control Systems | |
Avionics & Navigation Systems | |
Electrical Systems | |
Hydraulic Systems | |
Fuel Systems | |
Environmental Control Systems | |
Cabin & Emergency Equipment |
Were any defects, damage, or wear beyond acceptable limits discovered?
Were borescope or special inspections required?
Is photographic evidence of findings attached?
Log all discrepancies, defects, or non-conformances identified during maintenance. Each item requires a corresponding corrective action and independent verification. This log is critical for demonstrating airworthiness compliance.
Discrepancy & Corrective Action Details
Item Number | Discrepancy Description | Affected System/Component | Severity | Corrective Action Taken | Action Reference (AMM, SB, etc.) | Independent Inspection Required? | Inspector Name | Final Status (Closed/Deferred) | |
|---|---|---|---|---|---|---|---|---|---|
Were any discrepancies deferred for future rectification?
Record all parts installed, removed, or consumed during maintenance. Ensure full traceability for life-limited parts and verify compliance with approved parts regulations.
Were any parts installed or replaced?
Were any life-limited parts (LLP) installed?
Were any standard consumables (fluids, sealants, etc.) used?
Verify all tools and equipment used were within calibration intervals and serviceable. Non-compliant tools must be identified and assessed for potential impact on maintenance quality.
Were specialized tools or test equipment used?
Were any tools used with expired calibration?
Were torque wrenches used for critical fastener installations?
Document all functional tests, operational checks, and system verifications performed to ensure correct system operation post-maintenance.
Were any operational tests performed?
Were engine ground runs performed?
Was an Auxiliary Power Unit (APU) operational test performed?
Make the final airworthiness determination based on all maintenance performed, discrepancies identified, and corrective actions taken. This decision is legally binding and determines the aircraft's eligibility for return to service.
Final Airworthiness Determination
Airworthy - Approved for Return to Service
Airworthy - With Minor Deferred Items per MEL
Not Airworthy - Requires Additional Maintenance
Not Airworthy - Grounded Pending Investigation
Is a test flight required before return to passenger service?
Were any Minimum Equipment List (MEL) items deferred?
Are there any outstanding items that do not affect immediate airworthiness but require future attention?
Was the aircraft weighed or had its center of gravity calculated?
Confirm compliance with all applicable regulatory requirements, quality procedures, and that all documentation is complete and accurate for audit purposes.
I certify that all work was performed in accordance with approved technical data and organizational procedures
I certify that all parts and materials used were approved for installation on this aircraft type
I certify that all tools and equipment were calibrated and serviceable
I certify that all discrepancies were properly documented and either rectified or deferred in accordance with regulations
I certify that a thorough review of all maintenance records was completed before making the airworthiness determination
Was a quality assurance audit sample performed on this maintenance event?
Were any regulatory notifications required (e.g., Service Difficulty Report)?
Digital signature legally certifies the accuracy of all information provided and the airworthiness determination. All signatories must be authorized and have personally verified critical aspects of the maintenance performed.
Primary Maintenance Technician Signature
Technician Sign-off Timestamp
Certifying Staff Signature
Certifying Staff Sign-off Timestamp
Was an independent inspection required for any tasks?
Is maintenance organization management approval required for this release?
Additional Comments or Special Notes