ST04552CH
Installation of replacement parts consisting of horizontal stabilizer ribs, pivot fitting, and spar attach angle in accordance with Nextant Aerospace Master Data List Document No. NT0027-MDL0-0000, Revision C, dated April 7, 2022, and FAA approved August 30, 2022, or later FAA approved revision. \nInstructions for Continued Airworthiness (ICA), Document No. NT0027-ICA0-0100, Revision B, dated July 21, 2022, FAA approved September 6, 2022, or later approved revision is required for this installation. Held by Nextant Aerospace LLC, which holds 5 approved modifications in all. Last revised September 6, 2022. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- 400, 400A, 400T, MU-300-10
- Type certificates
- A16SW, A16SW, A16SW, A16SW
- On this site
- Mitsubishi MU-300 17 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 22, 2026.