SA331WE
Removal of section fuel tanks and installation of baggage compartment per STC SA333WE. Held by Rogerson Ats, which holds 54 approved modifications in all. Last revised May 25, 1991. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- TC-45H, UC-45J (SNB-5), C-45H, TC-45G, C-45G, E18S, D18S
- Type certificates
- A-765, A-765, A-765, A-765, A-765, A-765, A-765
- On this site
- Beechcraft TC-45 7 registered
Beechcraft UC-45 9 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.