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Parts · Landing gear

Servo Valve

74 failure reports named the servo valve in the last ten years, 216 since 1995, most often on the Airbus A319; the condition most often found was "faulted". 44 FAA approvals let 10 companies make a replacement servo valve, Parker Hannifin CORP holding the most (15).

Reports by year

0481115199520002005201020152020202562026
Reports by year, as a table
reports
19951
19966
19976
19981
19993
20005
20015
20025
20039
200411
200513
20069
20078
20084
20094
20106
201110
201215
201312
20145
20154
20164
20178
20184
20197
20206
20216
202211
20236
20247
20259
20266

Which system the reports file it under last ten years

Landing gear46Flight controls21Heating, ice protection and utility systems4Engine2Airframe structure1
Reports by system, as a table
reports
Landing gear46
Flight controls21
Heating, ice protection and utility systems4
Engine2
Airframe structure1

Models most often reporting it last ten years

Airbus A31919Airbus A32017Airbus A30011Airbus A3217Bombardier CL-600 Challenger and CRJ4Airbus A3303Boeing 7573Boeing 7672Cessna 560 Citation V, Ultra, Encore and Excel2Dassault FALCON 20002Douglas DC-91Fairchild SA2271
Models most reported, as a table
reports
Airbus A31919
Airbus A32017
Airbus A30011
Airbus A3217
Bombardier CL-600 Challenger and CRJ4
Airbus A3303
Boeing 7573
Boeing 7672
Cessna 560 Citation V, Ultra, Encore and Excel2
Dassault FALCON 20002
Douglas DC-91
Fairchild SA2271

How it failed the condition found, last ten years

faulted19failed17leaking11defective7faulty5malfunctioned4fault message2overheated2warning message2cracked1
Conditions found, as a table
reports
faulted19
failed17
leaking11
defective7
faulty5
malfunctioned4
fault message2
overheated2
warning message2
cracked1

Engines most often reporting it

General Electric CF34-3B 1Pratt & Whitney Canada PW545A 1Pratt & Whitney Canada PW545B 1

Approved replacement parts 44 parts manufacturer approvals

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

Parker Hannifin CORP 15Woodward Hrt INC 11Abex/Nwl Aerospace 5Alliance Aerospace Engineering INC 4Woodward INC 2Alliance Aerospace Engineering LLC 2Abex Aerospace 2Meggitt Aircraft Braking Systems Corporation 1Honeywell International INC 1Hr Textron INC 1

For these models most: Boeing 767 (7), Airbus A330 (7), Airbus A320 (6), Boeing 757 (5), Boeing 747 (5), Boeing 737 (5), Airbus A340 (5), Airbus A319 (5), Airbus A321 (4), Airbus A300 (4), Mcdonnell Douglas MD-10 (1), Dassault FALCON 900 (1).

MakerPartReplacesFitsGrantedStatus
Alliance Aerospace Engineering INCServo Valve Brake Body 10-AB35-003-2-435-003-2-3Airbus S.A.S. A318-111, A318-112, A318-1212026-03-25current
Woodward INCServo Valve, Assembly 8062-11902708M97P03General Electric... GE9X-105B1A, GE9X-105B1A1, GE9X-105B1A22025-07-24current
Woodward INCServo Valve, Assembly - Manifold 8062-11682708M98P01General Electric... GE9X-105B1A, GE9X-105B1A1, GE9X-105B1A22025-07-24current
Alliance Aerospace Engineering INCServo Valve Brake Body 10-AB35-003-2-435-003-2-3Airbus SAS A318 Series A318 Model -111, A318...2024-11-19current
Alliance Aerospace Engineering INCServo Valve Brake Body 10-AB35-003-2-435-003-2-3Airbus SAS A318 Series A318 Model -111, A318...2024-11-19current
Alliance Aerospace Engineering INCServo Valve, Brake Body 10-AB35-003-2-435-003-2-3Airbus A318 Series, A318 Model-111, A318 Model-1122018-03-29current
Parker Hannifin CORPServo Valve 781506600322-1Bombardier Learjet 35, Learjet 36, Learjet 552018-03-07current
Parker Hannifin CORPServo Valve 74081-0174081-01IAE V2522-A5, V2524-A5, V2527-A52015-12-17current
Parker Hannifin CORPServo Valve 74084-0274084-02IAE V2525-D5, V2528-D52015-12-17current
Alliance Aerospace Engineering LLCServo Valve, Brake Body 10-AB35-003-2-435-003-2-3Airbus A330-300 Series Models, A330-301, A330-3022015-04-21current
Alliance Aerospace Engineering LLCServo Valve, Brake Body 10-AB35-003-2-435-003-2-3Airbus A318 Series, A318 Model-111, A318 Model-1122015-04-21current
Parker Hannifin CORPServo Valve 70030-0170030-01Airbus A380-841, A380-842, A380-8612009-09-02current
Parker Hannifin CORPServo Valve 7418274182Airbus A330-201, A330-202, A330-2032009-09-02current
Woodward Hrt INCServo valve 22280730, 22280730-001S252T001-1, S252T001-3Boeing 767 Series2009-06-29current
Woodward Hrt INCServo valve 22280710, 22280710-001S252T001-3, S252T001-1Boeing 767-200, -300, 747-1002009-06-29current
Woodward Hrt INCServo valve 22280710S252T001-3Boeing 767-200, -300, 747-1002009-06-29current
Woodward Hrt INCServo valve 22280710-001S252T001-1Boeing 767-200, -300, 747-1002009-06-29current
Woodward Hrt INCServo valve 22280730-001S252T001-3Boeing 767 Series2009-06-29current
Woodward Hrt INCServo valve 22286090-10322286090-103Airbus A340-6422009-06-29current
Woodward Hrt INCServo valve 22286090-10422286090-104Airbus A340-6422009-06-29current
Woodward Hrt INCServo valve, Electro-hydraulic 2812094-108Parker Hannifin Corp 2812094-108Pratt & Whitney F117-PW-100, PW2037, PW2037(M)2009-06-29current
Woodward Hrt INCServo valve 22280730S252T001-1Boeing 767 Series2009-06-29current
Woodward Hrt INCServo valve Anti-Skid 105635010-60518-5Boeing 727-100, 707-200, 707-3002009-06-29current
Woodward Hrt INCServo Valve, Assembly 22282790-10477879113Rolls-Royce AE2100 and AE30072009-06-14current
Parker Hannifin CORPServo Valve 7419374193Airbus A380-841, A380-842, A380-8612009-05-18current
Parker Hannifin CORPServo Valve 74195-0174195-01Airbus A380-841, A380-842, A380-8612009-05-18current
Parker Hannifin CORPServo Valve 7419474194Airbus A380-841, A380-842, A380-8612009-05-18current
Parker Hannifin CORPServo Valve 7809078090Airbus A310-203, A310-204, A310-2212009-03-02current
Parker Hannifin CORPServo Valve 7806878068Airbus A310-203, A310-204, A310-2212009-03-02current
Meggitt Aircraft Braking Systems CorporationServo-valve 6007614-2Dassault Aviation P/N: 6007614-2Dassault Aviation Falcon 900EX2008-01-24current
Parker Hannifin CORPServo Valve 74099N/AFokker Services B.V. Fokker F28 MK 0070, Fokker F28 MK 01002005-03-27current
Parker Hannifin CORPServo Valve 72196S251N116-1Boeing 757-200 Series, 757-300 Series2004-10-19current
Parker Hannifin CORPServo Valve - Flow Control 74177-0174177-01Airbus A340-541, A340-6422003-12-14current
Parker Hannifin CORPServo Valve 207500-5003AYG7091-5503McDonnell Douglas MD-10-10F, MD-10-30F2001-07-18current
Parker Hannifin CORPServo Valve Assembly 398310-1003Boeing Commercial Airplane Group 398310-1003Boeing 737-300 Series, 737-400 Series,...1999-07-28current
Abex/Nwl AerospaceServo Valve 78068OEMAirbus A300, B4-605R, B4-622R1995-12-03current
Abex/Nwl AerospaceServo Valve 73195OEMAirbus A320, 111, 2111995-12-03current
Abex/Nwl AerospaceServo Valve 78090OEMAirbus A300, B4-103, B4-2031995-12-03current
Abex/Nwl AerospaceServo Valve 73020OEMAirbus A310, 203, 2211995-12-03current
Honeywell International INCServo Valve 3224996-1McDonnell Douglas MD-90-301995-09-14current
Hr Textron INCServo Valve 22280710Boeing S252T001-3Boeing 737-100, -200, -3001995-06-18current
Abex/Nwl AerospaceServo Valve 72196Boeing S251N116-1Boeing 757-2001993-11-14current
Abex AerospaceServo Valve 78014-0160B80057-1Boeing 747-100, -200, -3001991-12-09current
Abex AerospaceServo Valve 78014-0160B80057-1Boeing 747-100, -200, -3001991-12-09current

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.