SA7099NM
Limited to installation on 727 series 17, serial number 20512 ONLY. Removal of one auxiliary fuel cell from STC SA3810WE and reconfiguration of the seven remaining auxiliary fuel cells in forward and aft cargo compartments. Held by Webb & Associates. Last revised June 17, 1994. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 727 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 21, 2026.