SA5987NM-D
Remove the tourist class triple seat assemblies at the Type III overwing exits (LH and RH) and install inboard double seat assemblies in their place. The resulting interior arrangement will change from 8F/120Y to 8F/118Y. This installation is in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 5987 dated January 11, 1994, or later FAA approved revisions. Held by United Airlines INC, which holds 520 approved modifications in all. Last revised November 30, 2011. 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 2,892 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 22, 2026.