SA663GL
To install a scavenge oil filter system in G-164A and G-164B aircraft with P&W R985 or R1340 engines. Held by Airwolf Filter CORP, which holds 7 approved modifications in all. Last revised October 20, 2017. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Ag Cat Corporation; Ag Cat Corporation
- Models
- G-164A, G-164B
- Type certificates
- 1A16, 1A16
- On this site
- Ag-Cat Corporation G-164 5 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 8, 2026.