Annunciator

42 failure reports named the annunciator in the last ten years, 261 since 1995, most often on the Boeing 737; the condition most often found was "inoperative". 142 FAA approvals let 16 companies make a replacement annunciator, Rockwell Collins Aerospace and Electronics holding the most (47).

Reports by year

Reports by year, as a table

	reports
1995	3
1996	6
1997	7
1998	13
1999	7
2000	13
2001	16
2002	11
2003	13
2004	29
2005	23
2006	13
2007	10
2008	5
2009	8
2010	8
2011	13
2012	8
2013	4
2014	6
2015	3
2016	2
2017	4
2018	4
2019	3
2020	4
2021	3
2022	5
2023	3
2024	6
2025	3
2026	5

Which system the reports file it under last ten years

Airframe structure10Instruments and avionics8Electrical power7Flight controls5Landing gear5Heating, ice protection and utility systems3Emergency equipment2Cabin, seats and restraints1Fuel system1

Reports by system, as a table

	reports
Airframe structure	10
Instruments and avionics	8
Electrical power	7
Flight controls	5
Landing gear	5
Heating, ice protection and utility systems	3
Emergency equipment	2
Cabin, seats and restraints	1
Fuel system	1

Models most often reporting it last ten years

Models most reported, as a table

	reports
Boeing 737	8
Boeing 767	8
Boeing 757	5
Airbus A321	3
Airbus A300	2
Mcdonnell Douglas Aircraft Co MD-88	2
Mcdonnell Douglas MD-11	2
Airbus A320	1
Beechcraft B200 King Air B200	1
Beechcraft B300 King Air 350	1
Beechcraft C-99	1
Boeing 717	1

How it failed the condition found, last ten years

inoperative9malfunctioned7faulted5failed4defective3activated2faulty2loose2abnormal1damaged1

Conditions found, as a table

	reports
inoperative	9
malfunctioned	7
faulted	5
failed	4
defective	3
activated	2
faulty	2
loose	2
abnormal	1
damaged	1

Engines most often reporting it

General Electric CT7-9B 1

Approved replacement parts 142 parts manufacturer approvals

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

Rockwell Collins Aerospace and Electronics 47 Flight Dynamics INC 46 Korry Electronics CO 10 Control Products Corporation 10 International Avionics Incorporated 9 Luminator Holding, LP 8 Eaton Corporation, Aerospce Controls Div 2 Avionics Support Group, INC. 2 Shadin Avionics (Name Change From Shadin Company 2/28/06) 1 Panasonic Avionics Corporation 1 Luma Technologies LLC 1 Jettech, LLC 1 Erickson Incorporated DBA Erickson Air-Crane 1 Dac International 1 Bae Systems Controls INC 1 Airborne Maintenance & Engineering Services 1

For these models most: Boeing 737 (37), Boeing 727 (28), Dehavilland DHC-8 (24), Mooney M-20 (9), Mcdonnell Douglas MD-11 (8), Agusta Spa A109 (6), Bombardier DHC-8 Dash 8 and Q400 (5), Boeing 747 (4), Mcdonnell Douglas DC-10 (3), Bell 407 (3), Mcdonnell Douglas Aircraft Co MD-88 (2), Boeing 777 (2).

Maker	Part	Replaces	Fits	Granted	Status
Luma Technologies LLC	425 & 441 Annunciator/ Logic/Dimming Box LT-7425	Modification Article	Textron Aviation 441	2026-03-19	current
Jettech, LLC	Annunciator 1202-4000-01	Modification Article	Textron Aviation Inc 550, 560, 560XL	2024-04-05	current
Airborne Maintenance & Engineering Services	Annunciator, Flight Crew 007-01400-49	007-01400-49	Boeing 737-200/300	2022-07-11	current
Avionics Support Group, INC.	Annunciator SL21422832-1	Modification Part	Airbus SAS A319-111/112/113/114/115/131/132/133/...	2021-12-21	current
Dac International	Annunciator Kit, GDC31 1049-4201-20	Modification Part	Raytheon Aircraft Co.(Beech) 35, A36, N35	2020-07-31	current
Luminator Holding, LP	Annunciator 0200461-009	0200461-009	McDonnell Douglas Corporation MD-11, MD-11F	2019-10-07	current
Luminator Holding, LP	Annunciator 0200461-007	0200461-007	McDonnell Douglas Corporation MD-11, MD-11F	2019-10-07	current
Erickson Incorporated DBA Erickson Air-Crane	Annunciator 214-075-100-015	214-075-100-15	BELL 214B	2018-02-19	current
Avionics Support Group, INC.	Annunciator SL21422832-1	Modification Part	Airbus A319/A320/A321 Series	2016-04-18	current
Panasonic Avionics Corporation	ANNUNCIATOR RD-AA8114-02	MODIFICATION PART	Boeing 777-200 Series	2015-04-19	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-001	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-013	Modification Part	Bell Helicopter... 407	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-009	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-005	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-007	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-011	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-015	Modification Part	Bell Helicopter... 407	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-017	Modification Part	Bell Helicopter... 407	2010-09-26	current
Control Products Corporation	Annunciator, Dual Post, 2/Split 2001144-003	Modification Part	Agusta S.p.A. A109K2	2010-09-26	current
Korry Electronics CO	Annunciator Assembly, Light Assembly 211-611-1894-01	211-611-1894-01	BOEING 727-200	2009-10-25	current
Korry Electronics CO	Annunciator Assembly, Light Assembly 211-611-1892-01	211-611-1892-01	BOEING 727-200	2009-10-25	current
Korry Electronics CO	Annunciator 43300-001	43300-001	BOEING 757-200, 767-200, 767-300	2009-10-25	current
Control Products Corporation	Annunciator, 2/Split 2001144	Modification Part	Agusta A109K2	2008-05-20	current
Luminator Holding, LP	Annunciator/Aisle/ Emergency Light 200464-005	200464-005	McDonnell Douglas DC-10-10, -10F, -15	2007-01-29	current
Luminator Holding, LP	Annunciator 0200461-007	0200461-007	McDonnell Douglas MD-11, MD-11F	2007-01-29	current
Luminator Holding, LP	Annunciator 0200461-009	0200461-009	McDonnell Douglas MD-11, MD-11F	2007-01-29	current
Luminator Holding, LP	Annunciator/Aisle/ Emergency Light 200464-003	200464-003	McDonnell Douglas DC-10-10, -10F, -15	2007-01-29	current
Bae Systems Controls INC	ANNUNCIATOR, MASTER WARNING SYSTEM 102100-194	102100-194	Boeing DC-10-10, DC-10-30, DC-10-40	2005-04-05	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-003	Modification Part	Boeing 737-700, -800, -900 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-002	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-001	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-001	Modification Part	Fokker F27-500	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	DeHavilland DHC-8-100	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	DeHavilland DHC-8-100/-200/-300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1770-001	Modification Part	Bombardier, Inc. DHC-8 Series 100, 200 and 300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-001	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-002	Modification Part	Fokker F27-500	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	Bombardier, Inc. DHC-8 Series 100, 200 and 300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	DeHavilland DHC-8-100	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1770-001	Modification Part	DeHavilland DHC-8-100	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	DeHavilland DHC-8-100	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	DeHavilland DHC-8-100/-200/-300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-003	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-002	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	DeHavilland DHC-8-100/-200/-300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	Bombardier, Inc. DHC-8 Series 100, 200 and 300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-002	Modification Part	Boeing 737-700, -800, -900 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	DeHavilland DHC-8-100/-200/-300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	Bombardier, Inc. DHC-8 Series 100, 200 and 300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-001	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1770-001	Modification Part	DeHavilland DHC-8-100/-200/-300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-2430-001	Modification Part	Boeing 737-700, -800, -900 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-003	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	DeHavilland DHC-8-100	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-002	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-004	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-001	Modification Part	Boeing 727-200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-002	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-003	Modification Part	Boeing 737-700, 737-700IGW, 737-800	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1050-002	Modification Part	Boeing 727-100, -200	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	Boeing 737-300 Series, -400 Series, -500 Series	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1360-001	Modification Part	Bombardier, Inc. DHC-8 Series 100, 200 and 300	2004-08-23	current
Rockwell Collins Aerospace and Electronics	Annunciator 1500-1280-001	Modification Part	Boeing 737-700, -800, -900 Series	2004-08-23	current
Flight Dynamics INC	Annunciator 1500-1280-002	Modification Part	Boeing 737-700, -800, -900 Series	2001-12-18	current
Flight Dynamics INC	Annunciator 1500-1280-001	Modification Part	Boeing 737-700, -800, -900 Series	2001-12-18	current
Flight Dynamics INC	Annunciator 1500-2430-001	Modification Part	Boeing 737-700, -800, -900 Series	2001-12-18	current
Flight Dynamics INC	Annunciator 1500-1280-003	Modification Part	Boeing 737-700, -800, -900 Series	2001-12-18	current
Flight Dynamics INC	Annunciator 1500-1280-003	Modification Part	Boeing 737-700, -700C, -700IGW	2000-10-05	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	Boeing 737-700, -700C, -700IGW	2000-10-05	current
International Avionics Incorporated	Annunciator w/ Legend 9500505901	88025-501(3 Row Messages) or 500 D 0061-001(3...	Mooney Aircraft M20J	2000-07-04	current
International Avionics Incorporated	Annunciator w/ Legend 9500505819	88025-521(3 Row Messages) or 950 D 0303-002(2...	Mooney Aircraft M20J	2000-07-04	current
International Avionics Incorporated	Annunciator w/legend 9500505805	88025-519(3 Row Messages) or 950 D 0303-001(3...	Mooney Aircraft M20J, M20K	2000-07-04	current
International Avionics Incorporated	Annunciator w/ Legend 9500505904	88025-507(3 Row Messages) or 500 D 0061-004(3...	Mooney Aircraft M20J	2000-07-04	current
International Avionics Incorporated	Annunciator w/o Legend 9500505002	880025-000 (14VDC) or 500 D 0061-000 or 500 D 0024-000	Mooney Aircraft M20J (14VCD)	2000-07-04	current
International Avionics Incorporated	Annunciator w/ Legend 9500505903	88025-505(3 Row Messages) or 500 D 0061-003(3...	Mooney Aircraft M20J	2000-07-04	current
International Avionics Incorporated	Annunciator w/o Legend 9500505003	880025-000 (28VDC) or 950 D 0303-000	Mooney Aircraft M20J, M20K	2000-07-04	current
International Avionics Incorporated	Annunciator w/legend 9500505818	88025-521(3 Row Messages) or 950 D 0303-001(2...	Mooney Aircraft M20J, M20K	2000-07-04	current
International Avionics Incorporated	Annunciator w/legend 9500505806	88025-521(3 Row Messages) or 950 D 0303-002(3...	Mooney Aircraft M20J, M20K	2000-07-04	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	deHavilland DHC-8 100, and 200 Series	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1770-001	Modification Part	deHavilland DHC-8 100, and 200 Series	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-001	Modification Part	Fokker F27-500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1280-002	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-002	Modification Part	Fokker F27-500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1280-001	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-002	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	Boeing 737-700, -700IGW, -800	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	deHavilland DHC-8 100, and 200 Series	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-001	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1770-001	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1280-002	Modification Part	Boeing 737-700, -700IGW, -800	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	deHavilland DHC-8 100, and 200 Series	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1280-003	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-001	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1280-001	Modification Part	Boeing 737-700, -700IGW, -800	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-002	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1050-002	Modification Part	Boeing 727-200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1770-001	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	Boeing 737-700, -700IGW, -800	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	Boeing 727-100, -200	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-004	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	Boeing 737-300, -400, and -500	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	Boeing 737-700, -700IGW, -800	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-003	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Flight Dynamics INC	Annunciator 1500-1360-001	Modification Part	deHavilland DHC-8-100	2000-04-10	current
Shadin Avionics (Name Change From Shadin Company 2/28/06)	Annunciator 211039-1	Modification Part	Beech Raytheon) (F33, F33A, F33C	2000-01-06	current
Korry Electronics CO	Annunciator 43300-001	Delta Airlines P/N: 43300-001	Boeing B757 B767-200, B767-300, B767-300ER -200	1999-07-26	current
Korry Electronics CO	Annunciator 23036-001	Allied Signal P/N: 23036-001	McDonnell Douglas MD-88 MD-90-30	1999-07-26	current
Korry Electronics CO	Annunciator 43300-007	Allied Signal P/N: 43300-007	McDonnell Douglas MD-88 MD-90-30	1999-07-26	current
Luminator Holding, LP	Annunciator 0200461-009		McDonnell Douglas MD-11, MD-11F	1996-05-07	current
Luminator Holding, LP	Annunciator 0200461-007		McDonnell Douglas MD-11, MD-11F	1996-05-07	current
Korry Electronics CO	Annunciator 341-640-1008-03 thru...	Boeing 60B00121-8 thru 60B00121-12 All...	Boeing 747-100, -200, -300	1995-08-15	current
Korry Electronics CO	Annunciator Assembly 318-630-1025-001	Boeing 318-630-1025-001	Boeing 747-200, -300, 767-200	1995-05-31	current
Korry Electronics CO	Annunciator Assembly 434-674-1031-2336 & -2337	Boeing S231T300-2336 & -2337	Boeing 747-400 757-200 767-200, -300	1995-05-31	current
Korry Electronics CO	Annunciator Assembly 434-674-1031-2339 thru -2363	Boeing S231T300-2339 thru -2363	Boeing 747-400 757-200 767-200, -300	1995-05-31	current
Eaton Corporation, Aerospce Controls Div	Annunciator 4664-48	The Dee Howard Co. & Rolls Royce 4664-48	Boeing 727-22C, -25C, -27C	1992-12-31	current
Eaton Corporation, Aerospce Controls Div	Annunciator 4664-49	The Dee Howard Co. & Rolls Royce 4664-49	Boeing 727-22C, -25C, -27C	1992-12-31	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.