Aircraft Maintenance Tracking for Part 135 Operators | FlyAXS

A comprehensive guide to aircraft maintenance tracking for Part 135 operations, covering inspection programs, airworthiness directives, MEL management, and digital maintenance tracking systems required for FAA compliance.

Part 135 Maintenance Regulatory Framework

Part 135 maintenance is governed by FAR Parts 43, 91, and 135 Subpart J. Aircraft must be maintained under an approved aircraft inspection program (AAIP). Aircraft with 10 or more passenger seats must use a Continuous Airworthiness Maintenance Program (CAMP).

Inspection Programs

Part 135 operators choose from four inspection program types: Progressive Inspection (spreads work across intervals, reduces downtime), Annual/100-Hour Inspections (traditional intervals per Part 91.409), Manufacturer's Inspection Program (OEM-recommended intervals), and CAMP (required for 10+ seat aircraft).

Airworthiness Directive Compliance

ADs are mandatory FAA maintenance requirements — non-compliance grounds the aircraft. Subscribe to the FAA AD notification service for each aircraft type, engine type, and appliance in your fleet. Maintain documented compliance records for every AD.

MEL Management

An approved MEL allows dispatch with certain inoperative equipment under specified conditions. MEL items have category-based repair intervals: Category A (as specified), Category B (3 calendar days), Category C (10 calendar days), Category D (120 calendar days). Track from day of discovery.

Digital Maintenance Tracking

FlyAXS maintenance tracking automatically calculates due times across multiple interval bases, provides proactive alerts at 30/14/7 days, integrates with flight logs for automatic hour and cycle updates, and maintains a complete Part 43 audit trail for every maintenance action.