2016-18-17: Compressor impeller
FAA order 2016-18-17 is an airworthiness directive in force since November 4, 2016. The FAA's subject line: Compressor impeller. It names the Honeywell TPE331-10, Honeywell TPE331-10AV, Honeywell TPE331-10N, Honeywell TPE331-10R, Honeywell TPE331-10T, Honeywell TPE331-10U, Honeywell TPE331-10UA, Honeywell TPE331-11U, Honeywell TPE331-3U, Honeywell TPE331-5, Honeywell TPE331-6, Honeywell TPE331-8, Honeywell TPE331-series engines: about 96 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- Honeywell International Inc.
- Models
- TPE331-10, TPE331-10AV, TPE331-10GP, TPE331-10GT, TPE331-10N, TPE331-10P, TPE331-10R, TPE331-10T, TPE331-10U, TPE331-10UA, TPE331-10UF, TPE331-10UG, TPE331-10UGR, TPE331-10UR, TPE331-11U, TPE331-3U, TPE331-3UW, TPE331-5, TPE331-5A, TPE331-5AB, TPE331-5B, TPE331-6, TPE331-6A, TPE331-8, TSE331-3U
- Engine series
- Honeywell TPE331-10 13 aircraft
Honeywell TPE331-10AV 3 aircraft
Honeywell TPE331-10N 11 aircraft
Honeywell TPE331-10R 13 aircraft
Honeywell TPE331-10T 8 aircraft
Honeywell TPE331-10U 4 aircraft
Honeywell TPE331-10UA 1 aircraft
Honeywell TPE331-11U 8 aircraft
Honeywell TPE331-3U 1 aircraft
Honeywell TPE331-5 2 aircraft
Honeywell TPE331-6 3 aircraft
Honeywell TPE331-8 1 aircraft
Honeywell TPE331-series 28 aircraft
Dates and paperwork
- In force since
- November 4, 2016
- Published
- September 30, 2016 (signed August 26, 2016)
- Docket
- FAA-2015-4866
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The FAA's summary their words, unchanged
We are adopting a new airworthiness directive (AD) for certain Honeywell International Inc. (Honeywell) TPE331 model turboprop engines and TSE331-3U model turboshaft engines. This AD was prompted by the discovery of cracks in a 2nd stage compressor impeller during a routine shop visit. This AD requires removal of the 2nd stage compressor impeller. We are issuing this AD to prevent failure of the compressor impeller, uncontained part release, damage to the engine, and damage to the airplane.
The order itself the regulatory text, as published
Show the full text (3,307 characters)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 7, 2026. Connections as data: /graph/directive/2016-18-17.json · aircraft systems.
