2011-18-51: Main shaft bearing
Emergency order 2011-18-51 is an airworthiness directive. The FAA's subject line: Main shaft bearing. It names the Honeywell TPE331-1, 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 TPE331-12JR, Honeywell TPE331-12UHR, Honeywell TPE331-14A, Honeywell TPE331-14GR, Honeywell TPE331-2, Honeywell TPE331-3U, Honeywell TPE331-5, Honeywell TPE331-51, Honeywell TPE331-6, Honeywell TPE331-8, Honeywell TPE331-series engines: about 132 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
- TPE331-1, 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, TPE331-14A, TPE331-14B, TPE331-14F, TPE331-14GR, TPE331-14HR, TPE331-15AW, TPE331-1U, TPE331-1UA, TPE331-2, TPE331-25A, TPE331-25AA, TPE331-25AB, TPE331-25B, TPE331-25C, TPE331-25D, TPE331-25DA, TPE331-25DB,...
- Engine series
- Honeywell TPE331-1 1 aircraft
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 TPE331-12JR 15 aircraft
Honeywell TPE331-12UHR 3 aircraft
Honeywell TPE331-14A 1 aircraft
Honeywell TPE331-14GR 12 aircraft
Honeywell TPE331-2 3 aircraft
Honeywell TPE331-3U 1 aircraft
Honeywell TPE331-5 2 aircraft
Honeywell TPE331-51 1 aircraft
Honeywell TPE331-6 3 aircraft
Honeywell TPE331-8 1 aircraft
Honeywell TPE331-series 28 aircraft
Dates and paperwork
- Docket
- Unknown
- Replaced by
- 2011-18-51R1
- Status
- Historical
- The FAA's document
- Read the order on the FAA's site
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/2011-18-51.json · aircraft systems.