SA191SO
Installation of a battery box in the aft fuselage section. (TC-45H AND THSES MODELS AS PREVIOUSLY MODIFIED UNDER STC SA172SO). Held by Air Life Associates, INC, which holds 16 approved modifications in all. Last revised September 11, 1979. System: electrical power.
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
- D18S, UC-45J (SNB-5), TC-45G, TC-45J, TC-45H, C-45H, C-45G
- 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 20, 2026.