SA3981NM
Limited to installation on 727-2J4, serial number 20764, 20765, 20766, 22079, 22080, and 22574. Removal of No. 2 Aft Auxiliary Fuel Tank and Installation of Cargo Barrier Panel. Held by Valsan INC. Last revised September 7, 1989. System: fuel system.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 727-200 Series
- Type certificate
- A3WE
- On this site
- Boeing 727 37 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.