Parts

Regulator Shaft

No failure report names the regulator shaft. 5 FAA approvals let 3 companies make a replacement regulator shaft, Pma Sales LLC holding the most (3).

Approved replacement parts 5 parts manufacturer approvals

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

Pma Sales LLC 3Dukes INC 1Aero Fluid Products 1

For these models most: Boeing 737 (5).

Maker	Part	Replaces	Fits	Granted	Status
Aero Fluid Products	Regulator Shaft, Valve Disk 7003-33-1	Whittaker Controls 322482	The Boeing Company 737-300 Series, 737-400 Series,...	2018-12-01	current
Pma Sales LLC	Regulator Shaft, Valve Disk P322482	322482	BOEING 737-300 Series, 737-400 Series,...	2016-10-06	current
Pma Sales LLC	Regulator Shaft, Valve Disk P322482	322482	Boeing 737-300 Series, 737-400 Series,...	2012-10-16	current
Pma Sales LLC	Regulator Shaft, Valve Disk P322482	322482	Boeing 737-300 Series, 737-400 Series,...	2008-07-28	current
Dukes INC	Regulator Shaft, Valve Disk 7003-33-1	Whittaker Controls 322482	Boeing 737-300 Series, 737-400 Series,...	2002-08-08	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.