SE4494NM
Installation of oil filter adapter and oil filter. Held by Airwolf Filter Corporation, which holds 61 approved modifications in all. Last revised December 20, 2017. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation; Textron Lycoming AVCO Corporation
- Models
- GO-480-B, GO-480-B1A6, GO-480-B1B, GO-480-B1C, GO-480-B1D, GO-480-C1D6, GO-480-C2C6, GO-480-C2D6, GO-480-F1A6, GO-480-F2A6, GO-480-F4A6, GO-480-F6, GO-480-G1A6, GO-480-G1D6, GO-480-G1H6, GO-480-G1J6, GO-480-G2D6, GO-480-G2F6
- Type certificates
- E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275, E-275
- 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.