ST09459SC
Installation of a Honeywell EDZ-805 (5) tube electronic flight instrument sytem (EFIS) and triple honeywell laseref IRS with single lasertrack CDU. Held by International Aviation Services, LTD, which holds 2 approved modifications in all. Last revised March 25, 1998. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 747SP Series
- Type certificate
- A20WE
- On this site
- Boeing 747 192 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 20, 2026.