SA1902WE
Installation of Irvin cargo pallet assembly 125014 used in conjunction with net assembly 22758-51 (Brown- line), net assembly 40234010(ANCRA), and net assembly LMI-500-100 (Marino). (747-121) (707-321C) (720-21C). Held by Irvin Industries INC, which holds 9 approved modifications in all. Last revised August 25, 1970. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company
- Models
- 707, 720, 747
- Type certificates
- 4A26, 4A28, A20WE
- On this site
- Boeing 707 9 registered
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 8, 2026.