Parts · Instruments and avionics

Fmc

1,303 failure reports named the fmc in the last ten years, 1,999 since 1995, most often on the Boeing 737; the condition most often found was "malfunctioned". 1 FAA approvals let 1 company make a replacement fmc, Honeywell International US LLC holding the most (1).

Reports by year

Reports by year, as a table

	reports
1995	1
1996	4
1997	1
1998	3
1999	2
2000	6
2001	9
2002	16
2003	5
2004	3
2005	6
2006	15
2007	18
2008	32
2009	42
2010	38
2011	31
2012	89
2013	153
2014	85
2015	137
2016	165
2017	175
2018	152
2019	200
2020	114
2021	180
2022	188
2023	62
2024	27
2025	23
2026	17

Which system the reports file it under last ten years

Instruments and avionics1,276Flight controls23Fuel system3Engine1

Reports by system, as a table

	reports
Instruments and avionics	1,276
Flight controls	23
Fuel system	3
Engine	1

Models most often reporting it last ten years

Boeing 7371,141Boeing 76743Boeing 75734Airbus A32116Boeing 74712Airbus A32011Airbus A33010Airbus A3006Mcdonnell Douglas MD-116Boeing 7775Airbus A3194Airbus BD-5003

Models most reported, as a table

	reports
Boeing 737	1,141
Boeing 767	43
Boeing 757	34
Airbus A321	16
Boeing 747	12
Airbus A320	11
Airbus A330	10
Airbus A300	6
Mcdonnell Douglas MD-11	6
Boeing 777	5
Airbus A319	4
Airbus BD-500	3

How it failed the condition found, last ten years

malfunctioned546failed315faulted174intermittent56inoperative50faulty46false indication27unknown17fault message14defective9

Conditions found, as a table

	reports
malfunctioned	546
failed	315
faulted	174
intermittent	56
inoperative	50
faulty	46
false indication	27
unknown	17
fault message	14
defective	9

Engines most often reporting it

CFM International CFM56-7B27E 2General Electric CFM56 series 2CFM International CFM56-5B4 1CFM International LEAP-1B28 series 1General Electric CF6-80C2B7F 1International Aero Engines V2527-A5 1International Aero Engines V2527E-A5 1Pratt & Whitney Canada PW123 1Rolls-Royce RB-211 series 1

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a fmc and sell it as an approved part for the models named. These are the companies holding such approvals for a fmc:

Honeywell International US LLC 1

For these models most: Boeing 747 (1).

Maker	Part	Replaces	Fits	Granted	Status
Honeywell International US LLC	FMC 4052508-960	(S242T102-NONE)	BOEING 747-8 SERIES, 747-8F SERIES	2012-01-18	current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.