SE2107NM
Modify crankcase, crankshaft, carburetor and install cylinders from 520 cubic inch displacement engine and revise operating limits as shown in addendum SE2107NM. Held by Kenmore Air Harbor LLC, which holds 56 approved modifications in all. Last revised April 5, 2019. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Teledyne Continental Motors
- Models
- O-470-U
- Type certificate
- E-273
- 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.