Parts · Airframe structure

Drum

5 failure reports named the drum in the last ten years, 37 since 1995, most often on the Mcdonnell Douglas MD-11; the condition most often found was "broken". 17 FAA approvals let 10 companies make a replacement drum, Goodrich Landing Gear holding the most (4). The reports call it "drum", "drum assy".

Reports by year

Reports by year, as a table

	reports
1995	1
1996	3
1997	2
1998	3
1999	1
2000	5
2001	1
2002	1
2003	2
2004	3
2009	4
2010	1
2012	3
2014	2
2017	1
2018	1
2020	1
2023	2

Which system the reports file it under last ten years

Airframe structure4Engine1

Reports by system, as a table

	reports
Airframe structure	4
Engine	1

Models most often reporting it last ten years

Mcdonnell Douglas MD-114

Models most reported, as a table

	reports
Mcdonnell Douglas MD-11	4

How it failed the condition found, last ten years

broken1cracked1defective1malfunctioned1out of alignment1

Conditions found, as a table

	reports
broken	1
cracked	1
defective	1
malfunctioned	1
out of alignment	1

Engines most often reporting it

International Aero Engines V2533-A5 1

Approved replacement parts 17 parts manufacturer approvals

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

Goodrich Landing Gear 4Rotair Industries INC 2Helicopter Technology INC 2Eagle Air Engineering INC 2Aviation Materials Management INC 2Spirit Aerosystems INC 1Kelly Aerospace Power Systems, INC. 1Gemini Engineering 1Duncan Aviation INC 1Aviation Industry Repair INC 1

For these models most: Boeing 747 (5), Boeing 737 (5), Boeing 727 (4), Sikorsky S-64 (2), Sikorsky S-61 (2), Bell 47 (2), Mcdonnell Douglas DC-9 (1), Boeing 777 (1), Boeing 767 (1).

Maker	Part	Replaces	Fits	Granted	Status
Duncan Aviation INC	Drum, Tape 956527-3	956527-3	Boeing DC-9-32, 727-200 Series, 737-100 Series	2014-12-17	current
Aviation Materials Management INC	Drum Assy 65-51695-3	65-51695-3	Boeing 727-200 Series) (737-200 Series,...	2013-03-25	current
Aviation Materials Management INC	DRUM ASSY 295W1403-1	295W1403-1	Boeing 777-200 SERIES, 777-200LR SERIES,...	2013-03-25	current
Helicopter Technology INC	Drum, Centrifugal Clutch, Transmission R47-620-691-3	Bell P/N 047-620-691-3	Bell 47G-4, 47G-5, 47G-5A	2011-12-08	current
Helicopter Technology INC	Drum, Centrifugal Clutch, Transmission R47-620-691-5	Bell P/N 047-620-691-5	Bell 47G-4, 47G-5, 47G-5A	2011-12-08	current
Goodrich Landing Gear	DRUM ASSY 65B80455-1	65B80455-1	Boeing 747-100 SERIES, 747-100B SERIES,...	2009-10-29	current
Goodrich Landing Gear	DRUM 65B80455-2	65B80455-2	Boeing 747-100 SERIES, 747-100B SERIES,...	2009-10-29	current
Goodrich Landing Gear	DRUM 65B80455-2	65B80455-2	Boeing 747-100 SERIES, 747-100B SERIES,...	2009-10-29	current
Goodrich Landing Gear	DRUM ASSY 65B80455-1	65B80455-1	Boeing 747-100 SERIES, 747-100B SERIES,...	2009-10-29	current
Spirit Aerosystems INC	DRUM ASSY 65-51695-3	65-51695-3	Boeing 727-200 SERIES 737-200 SERIES,...	2009-05-17	current
Kelly Aerospace Power Systems, INC.	Drum CFRB9085	RB9085	Lycoming TIO-360 A3B6 IO-720 Series IO-540...	2009-04-06	current
Gemini Engineering	Drum Assy 65-51695-3	65-51695-3	Boeing 727-200 Series, 737-200 Series,...	2007-08-27	current
Eagle Air Engineering INC	Drum Assy 65B50232-8	65B50232-8	Boeing 747-100, -100B, -100B SUD	2003-08-03	current
Eagle Air Engineering INC	Drum Assy 411T1233-7	411T1233-7	Boeing 767-200, -300 Series	2003-08-03	current
Aviation Industry Repair INC	Drum Assembly - Drive Mechanism, Inboard Aft Flap AIR65C30824 -1 and -2.	65C30824-1 and -2.	Boeing 737-300 Series, 737-400 Series,...	2003-07-09	current
Rotair Industries INC	Drum R6137-91505-103, Dwg....	Sikorsky P/N S6137-91505-103	Sikorsky S61R, S64A	1998-02-12	current
Rotair Industries INC	Drum R6137-91505-102, Dwg....	Sikorsky P/N S6137-91505-102	Sikorsky S61R, S64A	1998-02-12	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.