Navigability Instructions by Reference Number
Airworthiness directives indexed by their official reference codes. Each entry links a directive number to the responsible manufacturer or design authority, the affected aircraft or engine type, and the date of issuance.
Directives by Reference
| Reference | Title | Responsible Party | Type | Date |
|---|---|---|---|---|
| EU-2018-0265-E (A) | Engine — Exhaust Valve — Replacement | BRP-ROTAX GmbH & Co. KG | ROTAX 914 | 07/12/2018 |
| AD INDEX (AB) | Summary of instructions issued from 03/01/2018 | — | — | — |
Summary Indices
AD INDEX (AB)
A consolidated index of all navigability instructions issued from January 3, 2018. This reference provides a chronological overview of directives published since that date, covering multiple manufacturers and aircraft types.
How to Use This Directory
Locate a directive by its reference code (e.g., EU-2018-0265-E). The reference format typically includes the issuing authority prefix, year, and a sequential identifier. Use the By Manufacturer view if you prefer to browse directives grouped by the responsible design or production organisation.
Airworthiness directives serve as legally enforceable rules issued by aviation authorities to notify aircraft owners, operators, and maintenance organizations of required safety actions. These instructions address conditions found in aircraft, engines, propellers, or components that may compromise safe operation. When a directive is published, it typically mandates inspection, modification, or replacement of parts within a specific compliance timeframe. The reference numbering system helps professionals quickly identify the issuing authority, the year of publication, and the sequential order of the directive. For operators managing fleets, maintaining a current log of applicable directives is essential for airworthiness compliance and operational safety.
Navigating the full scope of airworthiness instructions requires an organized approach to tracking multiple directives across different aircraft types and manufacturers. Each directive carries a unique reference code that links back to the responsible design authority and the specific component or system involved. Operators and maintenance teams rely on these reference numbers to verify that all required actions have been completed and properly documented. The indexing system provides a structured way to search, retrieve, and cross-reference safety instructions, ensuring that no critical compliance step is overlooked. This systematic method supports the ongoing airworthiness of aircraft and helps maintain the highest standards of aviation safety.