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

SA00899SE

Modification of Hat Aux. Landing Gear Drag Brace Support, P/N 145-34161 to P/N 145-34161DOC in accordance with Deluca of California, Inc. Drawing List 145-34161DOC-DL, Revision N/C, dated March 29, 1996, or later FAA approved revision. Held by Deluca of California INC., which holds 11 approved modifications in all. Last revised March 27, 2001. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.; Sierra Hotel Aero Inc.
Models
Navion (Army L-17A), Navion A (Army L-17B and L-17C), Navion B, Navion D, Navion E, Navion F, Navion G, Navion H
Type certificates
A-782, A-782, A-782, A-782, A-782, A-782, A-782, A-782
On this site
Navion NAVION D 5 registered
Navion NAVION F 6 registered
Navion NAVION G 61 registered
Navion NAVION H 36 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.