SA4320NM
Installation of an oil filter, filter base and mounting plate on the firewalls of those airplanes listed on AML No. SA4320NM that are equipped with an FAA approved Continental Model IO-520 engine installation which has been modified by the installation of an external mounted full flow oil adapter and spin-on oil filter. Held by Timberman Allen e, which holds 15 approved modifications in all. Last revised July 30, 1993. System: engine.
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; 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; 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
- 188, 188A, 188B, 206, 207, 207A, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, 210N, 210R, A185E, A185F, P206, P206A, P206B, P206C, P206D, P206E, U206, U206A, U206B, U206C, U206D, U206E, U206F, U206G
- Type certificates
- A9CE, A9CE, A9CE, A4CE, A16CE, A16CE, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A24, 3A24, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE
- On this site
- Cessna 188 33 registered
Cessna 206 Stationair 213 registered
Cessna 207 Skywagon 207 115 registered
Cessna 210 Centurion 1,526 registered
Cessna A185 Skywagon 1,372 registered
Cessna P206 Super Skylane 163 registered
Cessna U206 Stationair 798 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 5, 2026.