Valve Sequence
No failure report names the valve sequence. 24 FAA approvals let 4 companies make a replacement valve sequence, Shimadzu Precision Instruments, INC. holding the most (16).
Approved replacement parts 24 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a valve sequence and sell it as an approved part for the models named. These are the companies holding such approvals for a valve sequence:
Shimadzu Precision Instruments, INC. 16Aviation Materials Management INC 4Aviation Materials Management, INC. 2Aviation Materials Management, INC 2
For these models most: Boeing 777 (10), Boeing 767 (10), Boeing 757 (2), Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Nose Gear Operated 99C55201-121 | S293W240-2 | The Boeing Company 777-200, 777-200LR, 777-300 | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Door Operated 99C55008-101 | S293W360-1 | The Boeing Company 777-200, 777-200LR, 777-300 | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Uplock Operated 99C55007-111 | S293W350-1 | The Boeing Company 777-200, 777-200LR, 777-300 | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Drag Brace Operated 99C55203-111 | S293W340-2 | The Boeing Company 777-200, 777-200LR, 777-300 | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Nose Gear Door Operated 99C55202-101 | S293W260-1 | The Boeing Company 777-200, 777-200LR, 777-300 | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Downlock 098C00160 | 60B00252-2 | The Boeing Company 757-200, 757-200CB, 757-200PF | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Downlock 098C00160 | 60B00252-2 | The Boeing Company 747-200B, 747-200C, 747-200F | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Door Operated 99C58801-101 | S273T453-1 | The Boeing Company 767-400ER | 2023-11-27 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Drag Brace Operated 99C55203-111 | S293W340-2 | Boeing 777-200, 777-200LR, 777-300 | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Downlock 098C00160 | 60B00252-2 | Boeing 757-200, 757-200CB, 757-200PF | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Door Operated 99C55008-101 | S293W360-1 | Boeing 777-200, 777-200LR, 777-300 | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Downlock 098C00160 | 60B00252-2 | Boeing 747-200B, 747-200C, 747-200F | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Uplock Operated 99C55007-111 | S293W350-1 | Boeing 777-200, 777-200LR, 777-300 | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Nose Gear Door Operated 99C55202-101 | S293W260-1 | Boeing 777-200, 777-200LR, 777-300 | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Nose Gear Operated 99C55201-121 | S293W240-2 | Boeing 777-200, 777-200LR, 777-300 | 2015-05-14 | current |
| Shimadzu Precision Instruments, INC. | Valve Assembly-Sequence, Main Gear Door Operated 99C58801-101 | S273T453-1 | Boeing 767-400ER | 2015-05-14 | current |
| Aviation Materials Management, INC | Valve Assy-Sequence, MLG Operated 273T1400-9 | 273T1400-9 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2015-02-12 | current |
| Aviation Materials Management, INC | Valve Assy-Sequence, MLG Operated 273T1400-10 | 273T1400-10 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2015-02-12 | current |
| Aviation Materials Management, INC. | Valve Assy-Sequence, MLG Operated 273T1400-10 | 273T1400-10 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2014-09-04 | current |
| Aviation Materials Management, INC. | Valve Assy-Sequence, MLG Operated 273T1400-9 | 273T1400-9 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2014-09-04 | current |
| Aviation Materials Management INC | Valve Assy-Sequence, MLG Operated 273T1400-9 | 273T1400-9 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2013-03-24 | current |
| Aviation Materials Management INC | Valve Assy-Sequence, MLG Operated 273T1400-10 | 273T1400-10 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2013-03-24 | current |
| Aviation Materials Management INC | Valve Assy-Sequence, MLG Operated 273T1400-9 | 273T1400-9 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2010-10-18 | current |
| Aviation Materials Management INC | Valve Assy-Sequence, MLG Operated 273T1400-10 | 273T1400-10 | Boeing 767-200 SERIES, 767-300 SERIES,... | 2010-10-18 | 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.