ST09406AC
Removal of ten passenger seats, the re-pitching of the remaining seats, the installation of four first class double passenger seats, and the replacement of existing exit row doubles with triple seats. Held by Weber Aircraft, which holds 13 approved modifications in all. Last revised August 21, 1998. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 737-700 Series
- Type certificate
- A16WE
- On this site
- Boeing 737 2,892 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.