SA471GL
Installation of Great Lakes Aero Products windshield P/Ns W-2072, W/T-2072 and W/G-2072 (for aircraft aircraft S/N 30000 thru 50355) and P/Ns W-2073, W/T-2073 and W/G-2073 (for aircraft S/Ns 50356 and up). Held by Great Lakes Aero Products INC, which holds 19 approved modifications in all. Last revised January 30, 2007. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
- Models
- 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K
- Type certificates
- 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6
- On this site
- Cessna 180 Skywagon 2,605 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 12, 2026.