Parts · Airframe structure

Dampener

154 failure reports named the dampener in the last ten years, 305 since 1995, most often on the Airbus A321; the condition most often found was "low pressure". 10 FAA approvals let 7 companies make a replacement dampener, Aerotech Engineering INC holding the most (3).

Reports by year

Reports by year, as a table

	reports
1995	2
1996	2
1997	2
1998	10
1999	9
2000	3
2001	10
2002	13
2003	12
2004	6
2005	2
2007	3
2008	2
2009	6
2010	6
2011	3
2012	8
2013	21
2014	18
2015	13
2016	2
2017	22
2018	11
2019	29
2020	15
2021	6
2022	12
2023	10
2024	5
2025	14
2026	28

Which system the reports file it under last ten years

Airframe structure135Flight controls7Cabin, seats and restraints3Landing gear3Engine2Rotorcraft systems2Propeller1Heating, ice protection and utility systems1

Reports by system, as a table

	reports
Airframe structure	135
Flight controls	7
Cabin, seats and restraints	3
Landing gear	3
Engine	2
Rotorcraft systems	2
Propeller	1
Heating, ice protection and utility systems	1

Models most often reporting it last ten years

Airbus A32148Airbus A31933Airbus A32031Embraer ERJ 190 E190 and E19511Airbus A3009Airbus A3307Diamond Aircraft DA 42 Twin Star3Embraer ERJ 170 E170 and E1753Bombardier CL-600 Challenger and CRJ2Agusta A1091Airbus Helicopters EC 2251Boeing 7171

Models most reported, as a table

	reports
Airbus A321	48
Airbus A319	33
Airbus A320	31
Embraer ERJ 190 E190 and E195	11
Airbus A300	9
Airbus A330	7
Diamond Aircraft DA 42 Twin Star	3
Embraer ERJ 170 E170 and E175	3
Bombardier CL-600 Challenger and CRJ	2
Agusta A109	1
Airbus Helicopters EC 225	1
Boeing 717	1

How it failed the condition found, last ten years

low pressure64no test20failed15corroded12inoperative6low6malfunctioned6faulted4leaking4out of adjust3

Conditions found, as a table

	reports
low pressure	64
no test	20
failed	15
corroded	12
inoperative	6
low	6
malfunctioned	6
faulted	4
leaking	4
out of adjust	3

Engines most often reporting it

Austro Engine E4P(series 3Rolls-Royce RB-211 series 3International Aero Engines V2522-A5 1

Approved replacement parts 10 parts manufacturer approvals

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

Aerotech Engineering INC 3Rotair Industries INC 2Miraj Corporation 1Jacman Aircraft INC 1Itt Enidine INC 1Dynamo Aviation INC 1Aviation Engineering Consultants INC (Aeci) 1

For these models most: Mcdonnell Douglas DC-9 (3), Mcdonnell Douglas Aircraft Co MD-88 (3), Douglas DC-9 (3), Boeing 737 (3), Boeing 717 (3), Sikorsky S-61 (2), Pilatus PC-12 (1), Cessna A152 (1), Cessna A150 (1), Cessna 172 Skyhawk (1), Cessna 152 (1), Cessna 150 (1).

Maker	Part	Replaces	Fits	Granted	Status
Miraj Corporation	Dampener, Back Plate M23032-2716	23032-2716	Pilatus Aircraft Ltd. PC-12, PC-12/45, PC-12/47	2025-12-19	current
Itt Enidine INC	Dampener SP20523	Boeing P/N SP20523	Boeing 757-200 Series, 767-200 Series,...	2009-12-06	current
Aviation Engineering Consultants INC (Aeci)	Dampener Assembly, Shimmy 0442512-1AEC	Cessna 0442512-1	CESSNA 150K, A150K, 150L	2008-05-04	current
Aerotech Engineering INC	Dampener, Drain Valve AE980-8373-1	ABA8373-1	McDonnell Douglas DC-9-15, DC-9-31, DC-9-32	2007-03-14	current
Aerotech Engineering INC	Dampener, Drain Valve AE980-8373-1	ABA8373-1	McDonnell Douglas DC-9-15, DC-9-31, DC-9-32	2005-11-08	current
Dynamo Aviation INC	Dampener Assembly 756005-403	823915-403	Boeing 737-100 Series, 727-200 Series	2004-06-07	current
Aerotech Engineering INC	Dampener, Drain Valve AE980-8373-1	ABA8373-1	McDonnell Douglas DC-9-15, DC-9-31, DC-9-32	2004-04-11	current
Jacman Aircraft INC	Dampener Assembly 756005-403	823915-403	Boeing 737-100 SERIES 727-200 SERIES	1999-12-20	current
Rotair Industries INC	Dampener R6125-50528-0	Sikorsky S6125-50528-0	Sikorsky S-61L/N/NM (TC 1H15)	1993-03-15	current
Rotair Industries INC	Dampener R6125-50114-0	Sikorsky S6125-50114-0	Sikorsky S-61L, S-61N, S-61R	1992-07-20	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.