What an ICA, AMP, and CAMP Are (And How They Fit Together)

November 28, 2025

Quick Summary

  • What it is: ICA, AMP, and CAMP are three documents/programs that define how an aircraft must be inspected, maintained, and tracked throughout its life.
  • Why it matters: They determine airworthiness, compliance, maintenance costs, and how regulators audit an operator.
  • Who uses it: Operators, maintenance controllers, QA teams, regulators, and owners/lessors.
  • Key drivers: Aircraft type, operation type (91/135/121), regulatory framework, and the operator’s internal processes.

Plain-English Definitions

ICA – Instructions for Continued Airworthiness

Created by the manufacturer. Defines how the aircraft must be maintained to stay airworthy.

  • Includes inspection tasks
  • System descriptions
  • Recommended intervals
  • Airworthiness limitations

Think of the ICA as the manufacturer’s rulebook.

AMP – Approved Maintenance Program

Created by the operator, based on the ICA and regulatory requirements.
The regulator reviews and approves it.

  • Tailored to the actual operation
  • May be more restrictive than ICA
  • Includes custom intervals, operator-specific tasks

Think of the AMP as the operator’s customized maintenance program.

CAMP – Continuous Airworthiness Maintenance Program

A regulatory framework (mainly Part 121 and some 135) describing how an operator will manage airworthiness continuously.

CAMP includes:

  • Reliability programs
  • Reporting systems
  • Records management
  • Corrective action processes
  • MEL/CDL management
  • Inspection scheduling
  • QA oversight

Think of CAMP as the system for ensuring the AMP is followed properly.

Why This Matters

These three documents/programs control:

  • What tasks get done
  • How often they get done
  • Who is allowed to do them
  • How compliance is tracked and proved
  • Regulatory oversight
  • Airworthiness and asset value

If ICA is the recipe, AMP is the menu, CAMP is the restaurant operations manual.

How They Work Together (Step-by-Step)

  1. Manufacturer publishes the ICA.
  2. Operator develops its AMP based on the ICA.
  3. Regulator reviews and approves the AMP.
  4. Operator implements CAMP to manage:
    • reliability tracking
    • scheduled tasks
    • defect control
    • recordkeeping
  5. QA and regulatory audits ensure compliance.

Example Scenario

A regional airline wants to increase a specific inspection interval from 600 to 800 hours.

  • ICA says: 600 hours.
  • AMP currently says: 600 hours.
  • Airline’s reliability data shows no trend issues.

Process:

  1. Operator proposes a change to AMP.
  2. Regulator reviews data.
  3. If approved, AMP updated to 800 hours.
  4. CAMP updated to track new interval.
  5. QA monitors compliance.

Common Misunderstandings

  • “CAMP and AMP are the same thing.”
    No — CAMP is how you manage airworthiness; AMP is what you do to stay airworthy.
  • “AMP can be looser than ICA.”
    Typically not. AMP must meet or exceed ICA minimums unless deviations are fully justified.
  • “Part 91 aircraft don’t need AMP.”
    They need maintenance programs, but formal AMP/CAMP structures vary by reg type.

Related Topics

  • Reliability programs
  • Airworthiness directives
  • Maintenance planning
  • Part 121 vs Part 135
  • MEL/CDL/NEF management