CAD452 - AIRCRAFT MAINTENANCE SCHEDULES AND PROGRAMMES



Civil Aviation Department

The Government of the Hong Kong Special Administrative Region

CAD 452

Aircraft Maintenance Schedules and Programmes Information and Guidance

Issue 2 Revision 4 5 July 2024

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Foreword 1. This document addresses the scheduled maintenance requirements for aircraft as required by Article 9(1)(a) of the Air Navigation (Hong Kong) Order 1995 (AN(HK)O). 2. The information given is correct at the time of issue of this document, but amendments to the Air Navigation (Hong Kong) Order 1995, Hong Kong Airworthiness Notices and Hong Kong Aviation Requirements may subsequently vary the information.

Enquires Enquiries on this document should be addressed to the email address .

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Contents

Paragraph Subject

Page

Preambles

viii

1

Introduction

1

2

Maintenance Schedules and Maintenance Programmes

2

2.1

Maintenance Schedules

2

2.2

Maintenance Programmes

2

2.3

Compilation of Maintenance Schedules

2

2.4

Application for Approval of Maintenance Schedules

4

2.5

Amendment of Maintenance Schedules

4

3 3.1 3.2 3.3 3.4 3.4.1 3.4.2 3.4.3 3.4.4 3.4.5 3.4.6 3.4.7 3.5 3.6 3.6.1 3.6.2 3.7

New Maintenance Schedules - Initial Task Compilation

5

Maintenance Review Board (MRB)/Maintenance Type Board (MTB) 5

Maintenance Steering Group (MSG) Analysis

5

Maintenance Planning Document (MPD)

6

Other Tasks

6

Certification Maintenance Requirements (CMRs)

6

Airworthiness Limitation Items (ALIs)

7

Critical Design Configuration Control Limitations (CDCCLs)

7

Zonal Inspections

7

Lubrication

7

Inspection Level

8

Other Items

8

Task Frequency

8

Engine Tasks

9

Turbine Engines

9

Piston Engines

9

Propeller Tasks

9

4

Other Crucial Elements

10

4.1

Reliability Programmes

10

4.2

Annual Review

10

4.3

Utilisation

10

4.4

Task Escalation

11

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