SE3329NM
Lycoming valve cover gasket. Held by Real Gaskets Tennessee, which holds 6 approved modifications in all. Last revised November 20, 2014. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines; Lycoming Engines
- Models
- IO-540-B1A5, IO-540-B1C5, IO-540-E1A5, IO-540-E1B5, IO-540-M1A5, TIO-540-A1A, TIO-540-A1B, TIO-540-A2A, TIO-540-A2B
- Type certificates
- 1E4, 1E4, 1E4, 1E4, 1E4, E14EA, E14EA, E14EA, E14EA
- 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.