SE835NE
Installation of a Flowscan Model201B9 transducer. Held by Gebe Instruments CORP, which holds 5 approved modifications in all. Last revised May 10, 1995. 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
- Models
- IO-540-C4B5, IO-540-C4C5, IO-540-C4D5D, IO-540-W1A5D, IO-540-C1C5, IO-540-J4A5, IO-540-AA1A5, IO-540-W3A5D, IO-540-C2C, IO-540-C1B5
- Type certificates
- 1E4, 1E4, 1E4, 1E4, 1E4, 1E4, 1E4, 1E4, 1E4, 1E4
- 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.