EASA Part-21
E884115
EASA Part-21 is a European aviation regulation that sets the requirements and procedures for the certification of aircraft and related products, parts, and appliances, as well as for the approval of design and production organizations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| EASA Part-21 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10763196 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: EASA Part-21 Context triple: [EASA CS-23, relatedTo, EASA Part-21]
-
A.
14 CFR Part 21
14 CFR Part 21 is a key U.S. Federal Aviation Administration regulation that governs the certification procedures for aircraft and related aviation products and parts.
-
B.
EASA Part-145
EASA Part-145 is a European aviation regulation that sets the standards and requirements for organizations performing maintenance on aircraft and aircraft components to ensure safety and airworthiness.
-
C.
FAA Part 23
FAA Part 23 is a set of U.S. Federal Aviation Administration airworthiness standards that governs the design and certification of small airplanes.
-
D.
14 CFR Part 145
14 CFR Part 145 is the U.S. Federal Aviation Administration regulation that sets certification and operational requirements for aircraft repair stations and maintenance organizations.
-
E.
14 CFR Part 67
14 CFR Part 67 is the section of U.S. aviation regulations that sets the medical standards and certification requirements for pilots and airmen.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: EASA Part-21 Target entity description: EASA Part-21 is a European aviation regulation that sets the requirements and procedures for the certification of aircraft and related products, parts, and appliances, as well as for the approval of design and production organizations.
-
A.
14 CFR Part 21
14 CFR Part 21 is a key U.S. Federal Aviation Administration regulation that governs the certification procedures for aircraft and related aviation products and parts.
-
B.
EASA Part-145
EASA Part-145 is a European aviation regulation that sets the standards and requirements for organizations performing maintenance on aircraft and aircraft components to ensure safety and airworthiness.
-
C.
FAA Part 23
FAA Part 23 is a set of U.S. Federal Aviation Administration airworthiness standards that governs the design and certification of small airplanes.
-
D.
14 CFR Part 145
14 CFR Part 145 is the U.S. Federal Aviation Administration regulation that sets certification and operational requirements for aircraft repair stations and maintenance organizations.
-
E.
14 CFR Part 67
14 CFR Part 67 is the section of U.S. aviation regulations that sets the medical standards and certification requirements for pilots and airmen.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
European Union regulation implementing rule
ⓘ
aviation regulation ⓘ |
| administeredBy |
European Union Aviation Safety Agency
ⓘ
linked to:
EASA
|
| appliesTo |
EASA Member States
ⓘ
linked to:
EASA
civil aviation products in EASA Member States ⓘ |
| basedOn | Regulation (EU) 2018/1139 ⓘ |
| containsSubpart |
Subpart A – General Provisions
ⓘ
Subpart B – Type-certificates and Restricted Type-certificates ⓘ Subpart D – Changes to Type-certificates and Restricted Type-certificates ⓘ Subpart E – Supplemental Type-certificates ⓘ Subpart F – Production without Production Organisation Approval ⓘ Subpart G – Production Organisation Approval ⓘ Subpart J – Design Organisation Approval ⓘ Subpart M – Repairs ⓘ Subpart O – ETSO Authorisations ⓘ Subpart P – Permit to Fly ⓘ Subpart Q – Identification of Products, Parts and Appliances ⓘ |
| defines |
ETSO authorisation procedures
ⓘ
airworthiness certificate issuance procedures ⓘ airworthiness certificate validity conditions ⓘ changes to type design procedures ⓘ design organisation approval procedures ⓘ environmental protection requirements for products ⓘ identification of products, parts and appliances ⓘ permit to fly procedures ⓘ production organisation approval procedures ⓘ repair design approval procedures ⓘ restricted type-certificate procedures ⓘ supplemental type-certification procedures ⓘ type-certification procedures ⓘ |
| jurisdiction | European Union ⓘ |
| language | English ⓘ |
| purpose |
ensure safety of aircraft design and production
ⓘ
harmonise airworthiness certification within the EU ⓘ |
| regulates |
approval of design organisations
ⓘ
approval of production organisations ⓘ certification of aircraft ⓘ certification of aircraft engines ⓘ certification of parts and appliances ⓘ certification of propellers ⓘ |
| relatedTo |
CS-23
ⓘ
CS-25 ⓘ CS-27 ⓘ CS-29 ⓘ EASA Part-145 ⓘ EASA Part-CAMO ⓘ EASA Part-M ⓘ |
| requires | compliance with applicable Certification Specifications ⓘ |
| scope | initial airworthiness ⓘ |
| shortNameOf | Annex I to Commission Regulation (EU) No 748/2012 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: EASA Part-21 Description of subject: EASA Part-21 is a European aviation regulation that sets the requirements and procedures for the certification of aircraft and related products, parts, and appliances, as well as for the approval of design and production organizations.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
EASA CS‑23