The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · issued

SA10GL

Installation of Gayston Model 800LG and 800SG static dischargers on transport category airplanes. Held by Gayston Corporation. Last revised December 15, 1972. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation
Models
707-100B Long Body, 707-200, 707-100 Long Body, 707-100B Short Body, 707-300, 707-300B, 707-300C, 707-400 Series, 720B, 720, 737-100 Series, 737-200 Series, 737-200C Series, 747-100 Series, 747-200B Series, 747-200F Series, 727 Series, 727C Series, 727-200 Series, DC-8-51, DC-8-52, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-11, DC-8-53, DC-8-43, DC-8-62F, DC-8F-54, DC-8F-55, DC-8-61, DC-8-62, DC-8-63, DC-8-63F, DC-8-61F, DC-10-10, DC-9-41, DC-9-32F, DC-9-31, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-11, DC-9-32
Type certificates
4A21, 4A21, 4A21, 4A21, 4A26, 4A26, 4A26, 4A26, 4A28, 4A28, A16WE, A16WE, A16WE, A20WE, A20WE, A20WE, A3WE, A3WE, A3WE, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, 4A25, A22WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE
On this site
Boeing 707 9 registered
Boeing 727 37 registered
Boeing 737 2,892 registered
Boeing 747 192 registered
Douglas DC-8 6 registered
Douglas DC-9 7 registered
Mcdonnell Douglas DC-10 17 registered
Mcdonnell Douglas DC-9 93 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.