2015-22-53: Main Hydraulic System
Emergency order 2015-22-53 is an airworthiness directive. The FAA's subject line: Main Hydraulic System. It names Airbus Helicopters AS350 AStar (Écureuil), now H125: about 893 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: heating, ice protection and utility systems.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Airbus Helicopters
- Models
- AS-350B3
- On this site
- Airbus Helicopters AS350 AStar (Écureuil), now H125 893 registered
Dates and paperwork
- Docket
- Unknown
- Replaced by
- 2018-01-12
- Status
- Historical
- The FAA's document
- Read the order on the FAA's site
Related safety bulletins advice on the same designs, not orders
2021-08-13AIR-21-13 · ENGINE EMERGENCY SHUTDOWN SYSTEM
2019-07-15SW-17-23R2 · Fuel System
2018-03-02SW-17-23R1 · Fuel System
2017-08-24SW-17-23 · Fuel System
2015-08-13SW-15-20 · Air Conditioning System Wiring
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2015-22-53.json · aircraft systems.