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Regulatory Article 5855
RA 5855 - Parts and Appliances (MRP 21 Subpart K)
Rationale
Only approved parts and appliances are to be used on an Air System (and related
products, parts and appliances). The use of non-approved parts and appliances can
lead to unforeseen consequences. It is necessary to demonstrate the compliance of
parts and appliances for use on an Air System with applicable regulations and the
Type Design criteria.
Contents
5855(1): Compliance with Applicable Requirements
5855(2): Release of Newly Produced Parts and Appliances for
Installation
Regulation
5855(1)
Compliance with Applicable Requirements
5855(1) The Type Airworthiness Authority (TAA) shall ensure
compliance with applicable requirements for parts and
appliances to be installed in an Air System.
Acceptable Compliance with Applicable Requirements
Means of
1.
The TAA should ensure the compliance of parts and appliances to be installed
Compliance in an Air System:
1
a. In conjunction with the type certification procedures in RA 5810 or
5855(1)
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RA 5820 for the product in which it is to be installed.
b.
3
With an appropriate Certificate of Design approved under RA 5103 .
c. Under the (European) Technical Standard Order ((E)TSO) authorization
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procedures of RA 5875 .
d. In the case of standard parts, in accordance with officially recognized
standards.
2.
Equipment approved in accordance with a certification specification should
comply with the applicable (E)TSO, or equivalent accepted by the MAA Certification
Division.
3.
Any non-standard part should comply with the appropriate (E)TSO or an
appropriate requirement accepted by the MAA Certification Division.
Guidance
Material
5855(1)
Compliance with Applicable Requirements
Standard parts
4.
A part is considered as a “standard part” where it is designated as such by the
Design Organization (DO) responsible for the product, part or appliance, in which it is
intended to be used. Examples of standard parts are aircraft general spares such as
nuts, bolts, washers, split pins, etc.
Officially recognized standards
5.
In this context “officially recognized standards” means:
a.
Those standards established or published by an official body, which are
widely recognized as constituting good practice.
b.
The standard used by the Design Approval holder of the certified
equipment.
1
RA 5810 – Military Type Certificate (MRP 21 Subpart B).
RA 5820 – Changes in Type Design (MRP 21 Subpart D).
RA 5103 – Certificate of Design.
4
RA 5875 – (European) Technical Standard Order (MRP 21 Subpart O).
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RA 5855 Initial Issue
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Regulatory Article 5855
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Regulation
5855(2)
Release of Newly Produced Parts and Appliances for Installation
5855(2) A part or appliance (except parts referred to in RA 5855(1)
para 1c. and 1d. above), shall be eligible for installation in an
Air System operating in the Service Environment only when it
is:
a.
Accompanied by an authorized release certificate; and
b.
Marked in accordance with RA 5885 5.
Acceptable
Means of
Compliance
5855(2)
Release of Newly Produced Parts and Appliances for Installation
6.
With respect to the authorized release certificate, only the following documents
should be accepted as an equivalent to the MOD Form 731 for identifying a part or
appliance as serviceable:
a.
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A European Aviation Safety Agency (EASA) Form 1 ; or
b.
A release certificate following the template of European Military
Airworthiness Requirements (EMAR) Form 1, when issued by an authority
recognized by the MAA following the European Military Airworthiness Document
Recognition process and specifically recognized in this area of competence.
Guidance
Material
5855(2)
Release of Newly Produced Parts and Appliances for Installation
7.
Nil.
5
RA 5885 – Identification of Products, Parts and Appliances (MRP 21 Subpart Q).
If accepting EASA Form 1, the TAA setting the policy needs to stipulate which EASA Practice applies (refer to EASA letter
JAN/kgu/R(4) 2013(D)51397 – Rulemaking interpretation on “Maintenance release of aircraft not covered by the Basic Regulation”).
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