SA00377DE
ONE-ONLY STC, S/N 745: Installation of an oversize convex observer window in the most aft standard cabin window position. Held by Straight Flight INC, which holds 9 approved modifications in all. Last revised June 21, 2012. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- British Aerospace Regional Aircraft
- Models
- Jetstream Series 3101
- Type certificate
- A21EU
- 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.