Fork

148 failure reports named the fork in the last ten years, 452 since 1995, most often on the Airbus A319; the condition most often found was "worn". 23 FAA approvals let 16 companies make a replacement fork, Aerometals holding the most (4). The reports call it "fork", "fork assy".

Reports by year

Reports by year, as a table

	reports
1995	6
1996	15
1997	29
1998	55
1999	39
2000	19
2001	12
2002	12
2003	5
2004	7
2005	11
2006	4
2007	4
2008	11
2009	12
2010	6
2011	11
2012	5
2013	3
2014	2
2015	36
2017	9
2018	7
2019	18
2020	6
2021	3
2022	2
2023	32
2024	28
2025	31
2026	12

Which system the reports file it under last ten years

Airframe structure126Landing gear14Cabin, seats and restraints3Flight controls2Propeller2Rotorcraft systems1

Reports by system, as a table

	reports
Airframe structure	126
Landing gear	14
Cabin, seats and restraints	3
Flight controls	2
Propeller	2
Rotorcraft systems	1

Models most often reporting it last ten years

Models most reported, as a table

	reports
Airbus A319	38
Airbus A320	27
Airbus A300	22
Airbus A321	18
Boeing 737	10
Diamond Aircraft DA 40 Diamond Star	6
Boeing 767	5
Airbus A330	4
Piper PA-28 Cherokee, Warrior, Archer and Arrow	3
Airbus A350	2
Boeing 757	2
Bombardier CL-600 Challenger and CRJ	2

How it failed the condition found, last ten years

worn57cracked39corroded16none8damaged6burred3not reported3bent2broken2migrated2

Conditions found, as a table

	reports
worn	57
cracked	39
corroded	16
none	8
damaged	6
burred	3
not reported	3
bent	2
broken	2
migrated	2

Engines most often reporting it

Lycoming O-360-A4M 3 Lycoming IO-360-M1A 2 Continental IO-520 series 1

Approved replacement parts 23 parts manufacturer approvals

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

Aerometals 4 Pma Design & Manufacturing 2 Hollingsead International (No Longer Have Pma Production Approval) 2 Gemini Engineering INC 2 Aviation Materials Management INC 2 Wencor, LLC 1 Trw Aeronautical Systems, Lucas Aerospace 1 Seal Dynamics INC 1 Lucas Aerospace Cargo System 1 Hemico INC. 1 Garmin International INC 1 Aviation Materials Management, INC. 1 Aviation Materials Management, INC 1 Airwolf Aerospace LLC (Formerly Airwolf Helicopter) 1 Agrinautics 1 Adpma LLC 1

For these models most: Boeing 767 (7), Boeing 747 (5), Md Helicopters Inc 369 (4), Boeing 757 (4), Hughes Helicopters Inc HUGHES 369 (2), Dehavilland DHC-6 (2), Boeing 777 (2), Boeing 737 (2), Swearingen SA227 (1), Hiller UH-12 (1), Hiller OH-23 (1), Hiller H-23 (1).

Maker	Part	Replaces	Fits	Granted	Status
Wencor, LLC	Fork, Terminal 81207243WE	81207243	Airbus SAS A330-202, A330-223, A330-243	2026-06-10	current
Hemico INC.	Fork HEM27-90264-005	27-90264-005	Ontic Engineering... SA226-T, SA226-AT, SA226-TC	2024-07-24	current
Garmin International INC	FORK ASSEMBLY, PITCH CONTROL ROD, PMA, GFC 600H, BELL 505 117-01488-01	Modification Part	Bell Helicopter 505	2021-07-22	current
Airwolf Aerospace LLC (Formerly Airwolf Helicopter)	Fork - Main Rotor Blade Root AA-52110-3	52110-3	Siam Hiller Holdings UH-12C, UH-12D, UH-12E (Army H-23C	2017-08-30	current
Pma Design & Manufacturing	Fork PDMC6UM1150-27	C6UM1150-27	Viking Air Limited DHC-6-400 series	2017-07-26	current
Pma Design & Manufacturing	Fork Assembly PDM71-108-9	71-108-9	Viking Air Limited DHC-6-100, -200, -300	2016-01-28	current
Aviation Materials Management, INC	Fork 69B82321-3	69B82321-3	Boeing 747-400 Series, 747-400D Series,...	2015-02-12	current
Aerometals	Fork 369X21721-5	369D21721-5	MDHI Hughes) (369D, 369E, 369FF	2015-01-21	current
Aerometals	Fork Assy, Tail Rotor Drive 369X21721-21	369D21721-21	MDHI Hughes) (369D, 369E, 369FF	2015-01-21	current
Aviation Materials Management, INC.	Fork 69B82321-3	69B82321-3	Boeing 747-400 Series, 747-400D Series,...	2014-09-04	current
Aviation Materials Management INC	Fork 69B82321-3	69B82321-3	Boeing 747-400 Series, 747-400D Series,...	2013-02-27	current
Gemini Engineering INC	FORK 452T1033-9	452T1033-9	Boeing 767-300 Series, 767-300F Series,...	2009-11-15	current
Gemini Engineering INC	FORK ASSY 6-60428-6	6-60428-6	Boeing 737-300 Series, 737-400 Series,...	2009-11-15	current
Seal Dynamics INC	Fork H3316-17SD	Hartwell P/N H3316-17	Embraer Empresa EMB-120 Series Aircraft, EMB-135...	2008-06-16	current
Adpma LLC	Fork 451W3152-1	451W3152-1	Boeing 777-200 Series, 777-300 Series	2007-02-27	current
Aviation Materials Management INC	Fork 69B82321-3	69B82321-3	Boeing 747-400 Series, 747-400D Series,...	2006-08-24	current
Aerometals	Fork Assembly, Tail Rotor Drive 369X21721-21	369D21721-21	MD Helicopters, Inc. MDHI) (369D, 369E, 369FF	2002-09-11	current
Aerometals	Fork 369X21721-5	369D21721-5	MD Helicopters, Inc. MDHI) (369D, 369E, 369FF	2002-09-11	current
Trw Aeronautical Systems, Lucas Aerospace	Fork - Retractable Guide Roller, Pallet Option, Cargo Handling 452T2110-1	Boeing 452T2110-1	Boeing 767-200 Series, 767-300 Series,...	2002-05-22	current
Hollingsead International (No Longer Have Pma Production Approval)	Fork S/ASY 083169	Boeing 083169	Boeing 707-320, 737-200	1998-09-17	current
Hollingsead International (No Longer Have Pma Production Approval)	Fork S/ASY 0907-1	Boeing 0907-1	Boeing 747-100, -200, -300	1998-09-17	current
Lucas Aerospace Cargo System	Fork 452T2110-1	LACSM 452T2110-1	Boeing 767-200, 300	1997-05-19	current
Agrinautics	Fork 6011	Ayres Corp 80856-903, -904	Ayres 600S-2D, S-R, S2R-G1	1997-02-03	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.