The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA3821WE

Installation of single piece windshield, canopy side and rear windows. Held by Deluca of California INC., which holds 11 approved modifications in all. Last revised January 23, 1989. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Navion Aircraft Company Ltd.; 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
Navion A (L-17C), Navion B, Navion D, Navion (L-17A), Navion E, Navion F, Navion A (L-17B)
Type certificates
A-782, 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 7, 2026.