ST00620LA
Installation of dual Universal Avionics UNS-1K flight management systems with dual internal global positioning systems. Data pertaining to this modification are considered inadequate for duplication in other aircraft of this model. This approval is limited to one aircraft only, installation made in Gulfstream Model G-1159B airplane bearing serial number 312. Held by Ge Engine Services-Corporate Aviation INC. DBA Garrett Aviation Services, which holds 41 approved modifications in all. Last revised July 30, 2003. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Gulfstream Aerospace Corporation
- Models
- G-1159A
- 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.