International Organization for Standardization (ISO)
Status
Latest
ISO/TR 224:1998
Scope
This Technical Report specifies the standard form to be used for a declaration of design and performance (DDP) for
aircraft equipment.
A DDP is the commitment of a manufacturer to deliver a product complying with the defined dimensions and
performances, based on qualification tests carried out by the NSO (National Surveillance Organization), a major
user or by the manufacturer himself.
A DDP is not a compulsory procedure, it remains optional; its purpose is to avoid repeated qualification tests for
each use.
For a specific program, the DDP can be certified for the aircraft manufacturer or the NSO. This means that the
commitments of the manufacturer were met when the aircraft was certified.
The DDP is intended for components and equipment which do not relate to any national or international or aircraft
manufacturer specification.
If a normative document giving a full definition of a product exists, the dimensions, performances and qualification of
the product in question must be in accordance with that document.
ISO/TR 224:1998 history
1998ISO/TR 224:1998 Aircraft - Declaration of design and performance for aircraft equipment - Standard form