SA2221WE
Installation of SATCO Pallet No. 31080-501 with Marino Net Assembly LM1500-100, Ancra Corp Net Assembly 40234-10 and net assemblies approved to NAS 3610-2A1N and NAS 3610-2A3N. (707-321C). Held by Satco INC, which holds 21 approved modifications in all. Last revised August 19, 1970. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 707
- Type certificate
- 4A26
- On this site
- Boeing 707 9 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.