SE00265AT
Install Ayres Fuel Manifold Purge Assembly Kit, P/N 21757-1 in accordance with "Installation Instructions - Ayres P/N 21757-1 Fuel Manifold Purge Assy-Kit" Dwg. No. 21757-1(1), Revision none, dated April 20, 1993, or later FAA approved revision. Held by Thrush Aircraft INC., which holds 16 approved modifications in all. Last revised July 30, 2003. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.; AlliedSignal Inc.
- Models
- TPE331-1, TPE331-1U, TPE331-1UA, TPE331-2, TPE331-2U, TPE331-2UA, TPE331-10, TPE331-10A, TPE331-10AV, TPE331-10B, TPE331-10G, TPE331-10GP, TPE331-10GR, TPE331-10GT, TPE331-10J, TPE331-10N, TPE331-10P, TPE331-10R, TPE331-10T, TPE331-10U, TPE331-10UA, TPE331-10UF, TPE331-10UG, TPE331-10UGR, TPE331-10UJ, TPE331-10UK, TPE331-10UR, TPE331-11U, TPE331-11UA, TPE331-12, TPE331-12B, TPE331-12JR, TPE331-12UA, TPE331-12UAR, TPE331-12UER, TPE331-12UHR, TPE331-3, TPE331-3U, TPE331-3UW, TPE331-3W, TPE331-5, TPE331-5A, TPE331-5AB, TPE331-5B, TPE331-5U, TPE331-6, TPE331-6A, TPE331-6U, TPE331-8, TPE331-8A,...
- Type certificates
- E3WE, E3WE, E3WE, E3WE, E3WE, E3WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE, E4WE
- 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 8, 2026.