Stage Hush

No failure report names the stage hush. 7 FAA approvals let 2 companies make a replacement stage hush, Dc-9 Hushkit LLC holding the most (6).

Approved replacement parts 7 parts manufacturer approvals

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

Dc-9 Hushkit LLC 6 Abs Partnership 1

For these models most: Mcdonnell Douglas DC-9 (7).

Maker	Part	Replaces	Fits	Granted	Status
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-31/32/32F/33F/ 34/34F/41/51	2004-03-28	current
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-14/15/15F	2004-03-28	current
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-31/32/32F/33F	2004-03-28	current
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-31/32/32F/33F	2004-03-28	current
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-31/32/32F/33F/ 34/34F/41	2004-03-28	current
Dc-9 Hushkit LLC	Stage 3 Hush kit All parts listed on Master...	Modification Part	McDonnell Douglas DC-9-21/31/32/32F/33F	2004-03-28	current
Abs Partnership	Stage 3 Hush Kit MDL-009-002-91	Modification Part	McDonnell Douglas DC-9-31, -32, -32F	1997-09-25	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.