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

SA1637NM

Stair and handrail modification. Held by Rosen Sunvisor Systems LLC, which holds 86 approved modifications in all. Last revised March 24, 2003. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation; Sabreliner Corporation
Models
NA-265-20, NA-265-30, NA-265-40, NA-265-60, NA-265-65, NA-265-70, NA-265-80, NA-265
Type certificates
A2WE, A2WE, A2WE, A2WE, A2WE, A2WE, A2WE, A2WE
On this site
North American NA-265 10 registered
Rockwell International Corp NA-265 33 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.