Parts · Airframe structure

Balance Weight

276 failure reports named the balance weight in the last ten years, 380 since 1995, most often on the Boeing 737; the condition most often found was "corroded". 41 FAA approvals let 12 companies make a replacement balance weight, Qualiseal Technology holding the most (10).

Reports by year

Reports by year, as a table

	reports
1995	1
1996	10
1997	2
1998	3
1999	7
2001	14
2002	10
2003	5
2004	4
2005	5
2006	3
2007	8
2008	3
2009	2
2010	5
2011	9
2012	5
2013	2
2014	3
2015	3
2016	3
2017	34
2018	43
2019	33
2020	73
2021	21
2022	13
2023	15
2024	25
2025	5
2026	11

Which system the reports file it under last ten years

Airframe structure250Flight controls23Engine2Rotorcraft systems1

Reports by system, as a table

	reports
Airframe structure	250
Flight controls	23
Engine	2
Rotorcraft systems	1

Models most often reporting it last ten years

Boeing 737190Embraer EMB-505 Phenom 30061Mcdonnell Douglas MD-1112Boeing 7575Airbus A3191Airbus A3211Bell 206 JetRanger and LongRanger1Boeing 7471Embraer ERJ 170 E170 and E1751Mcdonnell Douglas MD-101Piper PA-44 Seminole1

Models most reported, as a table

	reports
Boeing 737	190
Embraer EMB-505 Phenom 300	61
Mcdonnell Douglas MD-11	12
Boeing 757	5
Airbus A319	1
Airbus A321	1
Bell 206 JetRanger and LongRanger	1
Boeing 747	1
Embraer ERJ 170 E170 and E175	1
Mcdonnell Douglas MD-10	1
Piper PA-44 Seminole	1

How it failed the condition found, last ten years

corroded229out of balance12damaged7out of tolerance4out of adjust3out of sequence3eroded2inadequate2missing2out of position2

Conditions found, as a table

	reports
corroded	229
out of balance	12
damaged	7
out of tolerance	4
out of adjust	3
out of sequence	3
eroded	2
inadequate	2
missing	2
out of position	2

Engines most often reporting it

CFM International CFM56 series 1International Aero Engines PW1133G-JM 1Lycoming TO-360 series 1

Approved replacement parts 41 parts manufacturer approvals

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

Qualiseal Technology 10Gemini Engineering 8Aviation Partners INC 4Aviation Materials Management INC 4Carson Helicopters, INC. 3Aviation Materials Management, INC 3John Jewell Aircraft, INC. 2Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC) 2Aviation Materials Management, INC. 2Seattle Aero LLC 1Aviation Enterprises 13 Points Aviation 1

For these models most: Boeing 737 (16), Raytheon Corporate Jets Inc BAE 125 (4), Sikorsky S-61 (3), Cessna T337 (1), Cessna P337 (1), Cessna 337 Skymaster (1), British Aerospace BAE 125 (1), Bombardier DHC-8 Dash 8 and Q400 (1), Boeing 747 (1).

Maker	Part	Replaces	Fits	Granted	Status
John Jewell Aircraft, INC.	Balance Weight JA182-205-1	Modification Part	Cessna C182 – C182R	2021-09-09	current
John Jewell Aircraft, INC.	Balance Weight JA182-205-2	Modification Part	Cessna C182 – C182R	2021-09-09	current
Aviation Materials Management, INC	BALANCE WEIGHT - RUDDER BALANCE ARM 173A5103-1	173A5103-1	Boeing 737-600 SERIES, 737-700 SERIES,...	2021-03-24	current
3 Points Aviation	Balance Weight 85740228-103-3PA	85740228-103	Bombardier DHC-8-100 Series, DHC-8-200 Series	2021-02-05	current
Carson Helicopters, INC.	Balance Weight 163-116-8	Modification Part	Sikorsky S61 series See AML	2017-07-18	current
Carson Helicopters, INC.	Balance Weight 163-116-9	Modification Part	Sikorsky S61 series See AML	2017-07-18	current
Carson Helicopters, INC.	Balance Weight 163-116-7	Modification Part	Sikorsky S61 series See AML	2017-07-18	current
Aviation Materials Management, INC	Balance Weight 113A7183-6	113A7183-6	Boeing 737-600 Series, 737-700 Series,...	2015-02-12	current
Aviation Materials Management, INC	Balance Weight 113A7183-3	113A7183-3	Boeing 737-600 Series, 737-700 Series,...	2015-02-12	current
Aviation Materials Management, INC.	Balance Weight 113A7183-3	113A7183-3	Boeing 737-600 Series, 737-700 Series,...	2014-09-04	current
Aviation Materials Management, INC.	Balance Weight 113A7183-6	113A7183-6	Boeing 737-600 Series, 737-700 Series,...	2014-09-04	current
Aviation Materials Management INC	Balance Weight 113A7183-3	113A7183-3	Boeing 737-600 Series, 737-700 Series,...	2013-03-24	current
Aviation Materials Management INC	Balance Weight 113A7183-6	113A7183-6	Boeing 737-600 Series, 737-700 Series,...	2013-03-24	current
Qualiseal Technology	Balance Weight QT3005290-CLE	Pratt & Whitney P/N 3005290-CLE	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3005290-CLB	Pratt & Whitney P/N 3005290-CLB	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3010117-CL2	Pratt & Whitney P/N 3010117-CL2	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3010117-CL1	Pratt & Whitney P/N 3010117-CL1	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3010117-CL3	Pratt & Whitney P/N 3010117-CL3	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3005290-CLC	Pratt & Whitney P/N 3005290-CLC	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3005290-CLD	Pratt & Whitney P/N 3005290-CLD	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3010117-CL5	Pratt & Whitney P/N 3010117-CL5	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3005290-CLA	Pratt & Whitney P/N 3005290-CLA	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Qualiseal Technology	Balance Weight QT3010117-CL4	Pratt & Whitney P/N 3010117-CL4	Pratt & Whitney PT6A-11, PT6A-110, PT6A-112	2012-07-04	current
Aviation Materials Management INC	Balance Weight 113A7183-6	113A7183-6	Boeing 737-600 Series, 737-700 Series,...	2010-08-08	current
Aviation Materials Management INC	Balance Weight 113A7183-3	113A7183-3	Boeing 737-600 Series, 737-700 Series,...	2010-08-08	current
Gemini Engineering	BALANCE WEIGHT 113A7183-6	113A7183-6	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT 113A7183-3	113A7183-3	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT 113A7183-5	113A7183-5	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT - RUDDER BALANCE ARM 173A5103-1	173A5103-1	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT 65C25920-3	65C25920-3	Boeing 737-200 Series, 737-200C Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT 65C25885-1	65C25885-1	Boeing 737-200 Series, 737-200C Series,...	2009-06-03	current
Gemini Engineering	BALANCE WEIGHT 65C25920-7	65C25920-7	Boeing 737-200 Series, 737-200C Series,...	2009-06-03	current
Aviation Partners INC	BALANCE WEIGHT - AILERON H800-0035-3	Modification Part	Raytheon BAe 125 Series 800, 800A/B, 800XP	2007-08-01	current
Aviation Partners INC	BALANCE WEIGHT - AILERON H800-0035-4	Modification Part	Raytheon BAe 125 Series 800, 800A/B, 800XP	2007-08-01	current
Seattle Aero LLC	Balance Weight H800-0035-1, H800-0035-2	H800-0035-1, H800-0035-2	British Aerospace BAe 125 Series 800A 800B 800XP	2006-10-03	current
Aviation Partners INC	BALANCE WEIGHT H800-0035-1	Modification Part	Raytheon BAe 125 Series 800A/B, 800XP	2005-10-27	current
Aviation Partners INC	BALANCE WEIGHT H800-0035-2	Modification Part	Raytheon BAe 125 Series 800A/B, 800XP	2005-10-27	current
Gemini Engineering	BALANCE WEIGHT 69B00541-1	69B00541-1	Boeing 747-100 SERIES, 747-100B SERIES,...	2003-10-05	current
Aviation Enterprises	Balance Weight Assembly-Aileron AE 1424001-6	1424001-6	Cessna 337 series, T337 series, P337 series	2002-05-05	current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)	Balance Weight Dwg No. 700-430	Hiller Dwg No. 10141230	Hiller Aviation 12D, 12L, 12E	1990-10-11	current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)	Balance Weight Antinode Dwg No. 10141230	Hiller Dwg No. 2253-1230	Rogerson Hiller 12E	1990-05-20	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.