SE33WE
Modification of: ( 1) Manual fuel valve and beta cams; (2) Fuel control linkage and propeller servo cam; and (3)Automatic control of bleed valve and engine starting functions; S/N P61801 only. Held by Garrett Turbine Engine Company A Division of the Garrett Corporation, which holds 2 approved modifications in all. Last revised December 9, 1981. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Honeywell International Inc.
- Models
- TPE331-25D
- Type certificate
- E2WE
- 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 7, 2026.