TPE331 Newsletter

The TPE331 turboprop engine, developed by Honeywell Aerospace, is renowned for its robust performance and versatility across a wide range of aircraft applications. One of the key metrics used to measure the power output of an aircraft engine is horsepower (HP). So, how much horsepower does a TPE331 have? The horsepower output of a TPE331 […]

As one of the most versatile turboprop engines in the aviation industry, the TPE331 powers a wide range of aircraft across various missions and applications. Developed by Garrett AiResearch, the TPE331 has earned a reputation for its reliability, durability, and performance, making it a popular choice for aircraft manufacturers and operators worldwide. One of the

When it comes to aircraft engines, reliability is paramount. For operators and maintenance providers alike, having an engine that performs consistently and dependably is essential for safety and operational efficiency. In the realm of turboprop engines, the TPE331 stands as a stalwart example of reliability. Developed by Honeywell Aerospace, the TPE331 turboprop engine has earned

TPE331 ADVISOR This newsletter is published to assist operators with the latest information on Airworthiness Directives, Alert Service Bulletins and technical tips. Specializing in small turbine maintenance since 1991! SIL P331-150 Lubricity Fuel Additives Applicable to all TPE331 engines equipped with Woodward Fuel Control System Originally released in 1994 and last revised in 2007 SIL

Airworthiness Directive of the Quarter 2018-17-15 This AD applies to Honeywell International Inc. (Honeywell) TPE331-1, -2, -2UA, – 3U, -3UW, -5, -5A, -5AB, -5B, -6, -6A, -8, -10, -10AV, -10GP, -10GT, -10N, -10P, -10R, – 10T, -10U, -10UA, – 10UF, -10UG, -10UGR, -10UR, and -11U, -12B, -12JR, -12UA, – 12UAR, -12UHR, -25AA, -25AB, -25DA, -25DB,

Recap SB 72-2208 AD 2016-18-17 2nd Stage Impeller AD 2016-18-17 applies to the second stage impeller part number 893482-1 through –5 inclusive or 3107056-1 or –2 installed. The AD was prompted by the discovery of cracks in a 2nd stage impeller during a routine shop visit. The AD was issued to prevent failure of the

Service Bulletin of the Quarter SB 72-2208 AD 2016-18-17 AD 2016-18-17 applies to the second stage impeller part number 893482-1 through –5 inclusive or 3107056-1 or –2 installed. The AD was prompted by the discovery of cracks in a 2nd stage impeller during a routine shop visit. The AD was issued to prevent failure of

Service Bulletin of the Quarter Cat 1 Plenum SB Category 1: Service bulletins that address safety issues must be complied with. Typically, they require urgent action and are often, but not always, referred to by an FAA Airworthiness Directive. Category 1 may be issued as an ALERT service bulletin when immediate action is required. Refer

Airworthiness Directive of the Quarter 2018-13-05 This AD applies to Honeywell  TPE331-1, -2, -2UA, -3U, -3UW, -5, -5B, -6, -6A, -8, -10, -10AV, -10N, -10P, -10R, -10T,  -10U, -10UA, -10UF, -10UR turboprop and TSE331-3U turboshaft engines with hydraulic torque sensor gear assemblies, part numbers 3101726-1, -2 or-3 installed. This AD was prompted by recent reports

Service Bulletin of the Quarter  SB 72-2190 Applicable to the TPE331 This is a Category 2 Service Bulletin: Problem: Some PPC assemblies, PN 869130-11 thru -14, -16 thru -19, -30 and PN 895481-1, -2, -4 thru -7, -17 thru -20, -22, do not have an internally-threaded hole in the splined end of the shouldered shaft,