Airworthiness Documentation for Modified Unmanned Aircraft

In plain language

If you modify your drone's critical systems, weight, or performance, you must provide CAAS with details of your design analysis, acceptance tests, and environmental tests to prove it is still safe to fly.

Requirement as structured

CAAS states that if a UA is modified in a way that impacts its flight critical systems, weight and balance, or performance, the operator must provide details of design analysis, acceptance tests, and environmental tests to support its airworthiness.

Original regulatory text

If a UA is modified in a way that impacts its flight critical system3, overall weight and balance, and/or performance capabilities and flight characteristics, the following information should be provided to support the airworthiness of the UA unless advised otherwise by CAAS: (a) Details of analysis carried out to derive the key design parameters... (b) Details of acceptance tests or checks conducted... (c) Details of environmental tests conducted...