SA4-1007
Installation of balance weights(Brittain Aircraft P/N 3010) on leading edge of Navion ailerons. Held by General Aviation Modifications INC., which holds 22 approved modifications in all. Last revised February 7, 2020. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Multitech Engineering Corporation; Multitech Engineering Corporation; Navion Aircraft Company Ltd.; Navion Aircraft Company Ltd.; Navion Aircraft Company Ltd.; Navion Aircraft Company Ltd.; Navion Aircraft Company Ltd.; Navion Aircraft Company Ltd.
- Models
- D-16, D-16A, Navion A (L-17C), Navion B, Navion D, Navion E, Navion F, Navion A (L-17B)
- Type certificates
- 2A1, 2A1, A-782, A-782, A-782, A-782, A-782, A-782
- On this site
- Navion NAVION B 42 registered
Navion NAVION D 5 registered
Navion NAVION F 6 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 19, 2026.