ST04536CH
1. Installation of Aviation Clean Air Ionizer System in accordance with Pentastar Aviation Master Data List, Document No. A-18028-210, Revision E, dated September 23, 2021 or later FAA approved revision.\n2. The aircraft must be maintained in accordance with the Instructions for Continuted Airworthiness listed in Pentastar Aviation Master Data List, Document No. A-18028-210, Revision E, dated September 23, 2021 or later FAA approved revision is a required part of this modification. Held by Pentastar Aviation LLC, which holds 29 approved modifications in all. Last revised December 9, 2021. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- Hawker 800XP, Hawker 850XP, Hawker 900XP
- Type certificates
- A3EU, A3EU, A3EU
- On this site
- Hawker Beechcraft Corp HAWKER 900 129 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 7, 2026.