The U.S. aircraft register, updated daily
Parts · Landing gear

Master Cylinder

37 failure reports named the master cylinder in the last ten years, 235 since 1995, most often on the Airbus A320; the condition most often found was "failed". 20 FAA approvals let 10 companies make a replacement master cylinder, Game Aerospace, LLC holding the most (4).

Reports by year

0611162219952000200620112016202112026
Reports by year, as a table
reports
19955
19964
19974
19983
19997
20009
20024
20039
200412
200511
20068
200722
200813
200912
201010
201119
201215
201311
20144
201516
20164
20173
20183
20194
20204
20212
20224
20235
20245
20252
20261

Which system the reports file it under last ten years

Landing gear37
Reports by system, as a table
reports
Landing gear37

Models most often reporting it last ten years

Airbus A3207Cessna 208 Caravan7Beechcraft 1900 Airliner4Aerospatiale ATR 722Airbus A3192Pilatus PC-122Piper PA-28 Cherokee, Warrior, Archer and Arrow2Aerospatiale/Aeritalia ATR 421Airbus A3211Atr-Gie Avions De Trnsp Region ATR421Beechcraft 99 Airliner1Beechcraft B300 King Air 3501
Models most reported, as a table
reports
Airbus A3207
Cessna 208 Caravan7
Beechcraft 1900 Airliner4
Aerospatiale ATR 722
Airbus A3192
Pilatus PC-122
Piper PA-28 Cherokee, Warrior, Archer and Arrow2
Aerospatiale/Aeritalia ATR 421
Airbus A3211
Atr-Gie Avions De Trnsp Region ATR421
Beechcraft 99 Airliner1
Beechcraft B300 King Air 3501

How it failed the condition found, last ten years

failed8leaking7inoperative3bypassing2defective2detached2faulted2faulty2malfunctioned2blocked1
Conditions found, as a table
reports
failed8
leaking7
inoperative3
bypassing2
defective2
detached2
faulted2
faulty2
malfunctioned2
blocked1

Engines most often reporting it

Pratt & Whitney PT6A series 2Lycoming O-540-E4C5 1Lycoming TIO-540-V2AD 1Pratt & Whitney Canada PT6A-67P 1

Approved replacement parts 20 parts manufacturer approvals

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

Game Aerospace, LLC 4Univair Aircraft CORP 3Onboard Systems International 3Parker Hannifin Corporation 2Ontic Engineering & Manufacturing INC 2Northwest Dynamics, INC. 2Circor Aerospace, INC. 1Aircraft Wheel & Brake, Div Parker Hannifin 1Air Repair INC 1Aero Fabricators INC 1

For these models most: Piper J-3 Cub (3), Airbus Helicopters MBB-BK 117 D-2 (3), Piper PA-18 Super Cub (2), Maule MXT-7 (2), Maule MX-7 (2), Maule MT-7 (2), Maule M-7 (2), Maule M-6 (2), Maule M-5 (2), Maule M-4 (2), Bell 505 (2), Aviat Aircraft Inc A-1 Husky (2).

MakerPartReplacesFitsGrantedStatus
Game Aerospace, LLCMaster Cylinder 676-10Maule 4046Maule Bee Dee M-4, M-4, M-4C2026-06-09current
Game Aerospace, LLCMaster Cylinder 670-5Cleveland 10-54Maule Bee Dee M-4, M-4, M-4C2026-06-09current
Game Aerospace, LLCMaster Cylinder 628-521Sky International Inc. 62865Sky International A-1, A-1A, A-1B2026-06-09current
Game Aerospace, LLCMaster Cylinder 687-37687-37Textron Aviation Inc. 200, 200C, B2002026-04-28current
Air Repair INCMaster Cylinder 943 089-01943 089-01Boeing Stearman 75 Series2023-03-30current
Northwest Dynamics, INC.Master Cylinder Installation Kit B0253-2B0253-2Bell 5052021-06-08current
Northwest Dynamics, INC.Master Cylinder Assembly B0252-2B0252-2Bell 5052021-06-08current
Onboard Systems InternationalMaster Cylinder with Plumbing – Dual 232-626-11232-626-11Airbus Helicopters... MBB-BK117D-22021-05-26current
Onboard Systems InternationalMaster Cylinder with Plumbing – Single 232-626-10232-626-10Airbus Helicopters... MBB-BK117D-22021-05-26current
Onboard Systems InternationalMaster Cylinder Plumbing Assembly Hook 1 & 2 232-632-00232-632-00Airbus Helicopters... MBB-BK117D-22021-05-26current
Parker Hannifin CorporationMaster Cylinder Assembly 010-05101Airbus Helicopter Deutschland Gmbh P/N 010-05101Airbus Helicopter... MBB-BK117 C-1, MBB-BK117 C-2, BO-105C2019-07-11current
Parker Hannifin CorporationMaster Cylinder Assembly 010-05101Airbus Helicopter Deutschland Gmbh P/N 010-05101Airbus Helicopter... MBB-BK117 C-1, MBB-BK117 C-2, BO-105C2019-07-11current
Univair Aircraft CORPMaster Cylinder Ass'y. - R.H. U1260AScott 1260H, Piper 451 701 451 710Piper J3C-40, J3C-50, J3C-50S2015-05-21current
Univair Aircraft CORPMaster Cylinder Ass'y. - L.H. U1248AScott 1248H, Piper 451 700 451 709 14726-00Piper J3C-40 J3C-50 J3C-50S J3C-65 J3C-65S...2015-05-21current
Univair Aircraft CORPMaster Cylinder Ass'y. - L.H U1248AScott 1248H, Piper 451 700 451 709 14726-00Piper PA-18AS135 PA-18 150 PA-18A 150...2015-05-21current
Ontic Engineering & Manufacturing INCMaster Cylinder Assembly 4408-00-ONT4408Univair Aircraft Corp 108-3 (S/N 3940 & up)2014-02-05current
Ontic Engineering & Manufacturing INCMaster Cylinder Assembly 4408D4408DAviat Aircraft A-1, A-1A, A-1B2013-04-18current
Circor Aerospace, INC.Master Cylinder Bleed Valve ZB3HV04-1ZB3HV04-1Dornier 328-1002013-01-29current
Aircraft Wheel & Brake, Div Parker HannifinMaster Cylinder 10-30Grob 10-30Burkhart Grob G115A, G115B, G115C1999-09-19current
Aero Fabricators INCMaster Cylinder Mount Bracket M-361-025Piper 10134Piper J3C-40, J3C-50, J3C-50S1998-03-08current

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.