Parts · Airframe structure

Stop Pin

25 failure reports named the stop pin in the last ten years, 50 since 1995, most often on the Boeing 737; the condition most often found was "out of adjust". 21 FAA approvals let 9 companies make a replacement stop pin, Spirit Aerosystems INC holding the most (6).

Reports by year

Reports by year, as a table

	reports
1995	1
1997	1
2000	1
2001	1
2002	1
2005	1
2007	2
2008	3
2009	2
2010	4
2011	1
2012	3
2013	3
2015	1
2016	1
2018	6
2019	3
2021	5
2022	3
2023	2
2024	3
2025	1
2026	1

Which system the reports file it under last ten years

Airframe structure15Engine8Cabin, seats and restraints1Landing gear1

Reports by system, as a table

	reports
Airframe structure	15
Engine	8
Cabin, seats and restraints	1
Landing gear	1

Models most often reporting it last ten years

Boeing 73714Boeing 7573Airbus A3211Beechcraft 35 Bonanza and Debonair1Boeing 7771

Models most reported, as a table

	reports
Boeing 737	14
Boeing 757	3
Airbus A321	1
Beechcraft 35 Bonanza and Debonair	1
Boeing 777	1

How it failed the condition found, last ten years

out of adjust9loose6damaged2worn2backed out1broken1cracked1missing1out of position1out of rig1

Conditions found, as a table

	reports
out of adjust	9
loose	6
damaged	2
worn	2
backed out	1
broken	1
cracked	1
missing	1
out of position	1
out of rig	1

Engines most often reporting it

CFM International CFM56-7B27 2Lycoming IO-360-B4A 2Lycoming IO-360-L2A 2Continental IO-470-N 1Continental TSIO-550-K 1

Approved replacement parts 21 parts manufacturer approvals

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

Spirit Aerosystems INC 6Continental Motors INC 4Sonic Industries INC 3Gemini Engineering 2Aviation Materials Management INC 2Duncan Aviation INC 1Aviation Materials Management, INC. 1Aviation Materials Management, INC 1Av8 Pma, LLC. 1

For these models most: Boeing 737 (10), Boeing 777 (3), Mcdonnell Douglas DC-10 (1), Embraer EMB-505 Phenom 300 (1), Embraer EMB-500 Phenom 100 (1), Douglas DC-10 (1), Cessna 525 CitationJet (CJ series) (1).

Maker	Part	Replaces	Fits	Granted	Status
Av8 Pma, LLC.	Stop Pin NP-2310-1132-001	2310-1132-001	EMBRAER S.A. EMB-500, EMB-505	2022-04-15	current
Duncan Aviation INC	Stop Pin Housing Assembly SWA-014862	Modification Part	Cessna Aircraft Company 525C	2016-11-09	current
Aviation Materials Management, INC	Stop Pin 149A6141-1	149A6141-1	Boeing 737-600 Series, 737-700 Series,...	2015-02-12	current
Aviation Materials Management, INC.	Stop Pin 149A6141-1	149A6141-1	Boeing 737-600 Series, 737-700 Series,...	2014-09-04	current
Aviation Materials Management INC	Stop Pin 149A6141-1	149A6141-1	Boeing 737-600 Series, 737-700 Series,...	2013-03-24	current
Aviation Materials Management INC	Stop Pin 149A6141-1	149A6141-1	Boeing 737-600 Series, 737-700 Series,...	2010-08-08	current
Spirit Aerosystems INC	STOP PIN 66-12687-10	66-12687-10	Boeing 737-600 SERIES, 737-700 SERIES,...	2010-03-30	current
Gemini Engineering	STOP PIN 149A6141-1	149A6141-1	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Gemini Engineering	STOP PIN 66-12687-10	66-12687-10	Boeing 737-600 Series, 737-700 Series,...	2009-06-03	current
Spirit Aerosystems INC	STOP PIN 66-12687-10	66-12687-10	Boeing 737-600 SERIES, 737-700 SERIES,...	2007-04-12	current
Spirit Aerosystems INC	STOP PIN 137W1107-1	137W1107-1	Boeing 777-200 SERIES, 777-300 SERIES,...	2007-03-02	current
Spirit Aerosystems INC	STOP PIN 149A6141-1	149A6141-1	Boeing 737-600 SERIES, 737-700 SERIES,...	2007-03-02	current
Sonic Industries INC	STOP PIN 116W2806-1	116W2806-1	Boeing 777-200 SERIES, 777-300 SERIES,...	2006-05-15	current
Spirit Aerosystems INC	STOP PIN 137W1107-1	137W1107-1	Boeing 777-200 SERIES, 777-300 SERIES,...	2006-01-04	current
Spirit Aerosystems INC	STOP PIN 149A6141-1	149A6141-1	Boeing 737-600 SERIES, 737-700 SERIES,...	2005-12-15	current
Sonic Industries INC	STOP PIN ARB7139-1	ARB7139-1	BOEING DC-10-10, DC-10-10F, DC-10-15	2004-06-03	current
Sonic Industries INC	STOP PIN ARB7139-507	ARB7139-507	BOEING DC-10-30, DC-10-30F, DC-10-40	2004-06-03	current
Continental Motors INC	Stop-Pin, Oversize, Type S20 & SC20, 10-400602	Modification Part	Miscellaneous TCM/Bendix Impulse-Coupled S-20 or...	1987-03-15	current
Continental Motors INC	Stop-Pin, Oversize, Type S20 & SC20, 10-400603	Modification Part	Miscellaneous TCM/Bendix Impulse-Coupled S-20 or...	1987-03-15	current
Continental Motors INC	Stop-Pin, Oversize, Type S20 & SC20 P/N 10-400603, Dwg. No....	Modification Part	Aircraft having... TCM/Bendix Impulse-Coupled S-20 or...	1987-03-14	current
Continental Motors INC	Stop-Pin, Oversize, Type S20 & SC20 P/N 10-400602, Dwg. No....	Modification Part	Aircraft having... Franklin) or Grob Reciprocating...	1987-03-14	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.