SA4907NM
Installation of passenger seats, class divider, overwater equipment, exit signs, relocation of passenger service units and no smoking, fasten seat belt signs. Held by Lmi Aerospace, which holds 76 approved modifications in all. Last revised November 28, 2018. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 757-200
- Type certificate
- A2NM
- On this site
- Boeing 757 440 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 7, 2026.