ST04368CH
Installation of a dual Universal Avionics Systems Corporation AHS-525 Attitude and Heading Reference System (AHRS) in accordance with Pentastar Aviation Master Data List, Document No. A-16738-001, Rev. A, dated December 19, 2018, or later FAA approved revision. Held by Pentastar Aviation LLC, which holds 29 approved modifications in all. Last revised December 19, 2018. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Gulfstream Aerospace Corporation
- Models
- G-1159B
- Type certificate
- A12EA
- On this site
- Gulfstream G-1159 Gulfstream II and III 42 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.