SA421GL
Installation of aileron and flap gap seals. Held by Knots 2U LTD, which holds 7 approved modifications in all. Last revised November 20, 2006. System: flight controls.
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; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- F33, 35-A33, H35, 35-C33, 35-C33A, E33, 35-B33, E33C, F33A, F33C, G33, V35B, E33A, J35, B36TC, A36TC, 36, V35A, V35, S35, P35, 35-33, N35, M35, K35, A36
- Type certificates
- 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15
- On this site
- Beechcraft 35 Bonanza and Debonair 1,077 registered
Beechcraft A36 Bonanza 2,530 registered
Beechcraft B36 Bonanza 308 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 5, 2026.