The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · surrendered

ST02409AT

One-time only installation of interior with coat closets, cabin divider, four C39b single sleeper seats (TSO C39b) with adapter plates, 40 first-class double seats (TSO C39b), club table, two-seat and five-seat settees (not for TTL occupancy), bar unit, and lamp. Approved for serial number 27924 ONLY. Held by Flight Services Group. Last revised March 22, 2010. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
737-300 Series
Type certificate
A16WE
On this site
Boeing 737 2,893 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.