SA4319NM
Installation of an oil filter, filter base and mounting plate on the firewalls of those airplanes listed on AML No SA4319NM that are equipped with an FAA approved Continental model GO-300 engine installation which has been modified by the installation of an external mounted full flow oil adapter and spin-on oil filter. Held by Aviation Products Development CO., which holds 2 approved modifications in all. Last revised June 20, 1989. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- 175C, 175B, 175A, 175, P172D
- Type certificates
- 3A17, 3A17, 3A17, 3A17, 3A17
- On this site
- Cessna 175 Skylark 925 registered
Cessna P172 23 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 20, 2026.