The U.S. aircraft register, updated daily
Parts · Engine

Spool

10 failure reports named the spool in the last ten years, 20 since 1996, most often on the Boeing 737; the condition most often found was "damaged". 61 FAA approvals let 17 companies make a replacement spool, Aviation Materials Management INC holding the most (9).

Reports by year

0012219962015202312026
Reports by year, as a table
reports
19961
20031
20052
20072
20102
20152
20161
20192
20202
20211
20231
20242
20261

Which system the reports file it under last ten years

Engine10
Reports by system, as a table
reports
Engine10

Models most often reporting it last ten years

Boeing 7373Boeing 7772Airbus A3201Boeing 787 Dreamliner1
Models most reported, as a table
reports
Boeing 7373
Boeing 7772
Airbus A3201
Boeing 787 Dreamliner1

How it failed the condition found, last ten years

damaged3corroded2cracked2dented1nicked1unknown1
Conditions found, as a table
reports
damaged3
corroded2
cracked2
dented1
nicked1
unknown1

Engines most often reporting it

CFM International CFM56-5B4/3 1CFM International CFM56-7B26/B1 1CFM International CFM56-7B27 1General Electric CFM56 series 1General Electric GE90 series 1

Approved replacement parts 61 parts manufacturer approvals

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

Aviation Materials Management INC 9Jet Avion Corporation A Heico Aerospace Company 8Goodrich Landing Gear 8Aero Accessories LLC 6Vision Air INC 4Gemini Engineering 4Extex Engineered Products INC 4Aviation Materials Management, INC. 4Aviation Materials Management, INC 4Spirit Aerosystems INC 2Gemini Engineering INC 2Unison Industries LLC - Dayton 1Sonic Industries INC 1Pacific Sky Supply INC 1Jet Parts Engineering, LLC. (Jpe) 1Jet Parts Engineering, INC. (Jpe) 1Aerospace Component Manufacturing & Engineering 1

For these models most: Boeing 767 (14), Boeing 777 (13), Bell 206 JetRanger and LongRanger (8), Boeing 747 (6), Boeing 757 (5), Boeing 737 (5), Piper PA-60 Aerostar (1), Piper PA-31 Navajo and Chieftain (1), Piper PA-23 Apache and Aztec (1), Mcdonnell Douglas MD-11 (1), Mcdonnell Douglas DC-10 (1), Douglas DC-10 (1).

MakerPartReplacesFitsGrantedStatus
Aero Accessories LLCSpool, Pilot Valve AG210332Woodward P/N:210332Textron Aviation Inc. 180, 182, 1852026-05-27current
Aero Accessories LLCSpool, Pilot Valve AG5221-222Woodward P/N:5221-222Textron Aviation Inc. 336, 337, 337A (USAF 02B)2026-05-27current
Aero Accessories LLCSpool, Pilot Valve AG5221-222Woodward P/N:5221-222Piper Aircraft PA-23-235, PA-23-250, PA-312026-05-27current
Aero Accessories LLCSpool, Pilot Valve AG210332Woodward P/N:210332BellancaAircraft 17-30, 17-30A2026-05-27current
Aero Accessories LLCSpool, Pilot Valve AG5221-222Woodward P/N:5221-222Aerostar Aircraft Corporation PA-60-600 (Aerostar 600), PA-60-601...2026-05-27current
Aero Accessories LLCSpool, Pilot Valve, Finished AGB-20910McCauleyB-20066A-20266B-20910Textron Aviation... A23-24, A24, A24R2022-05-24current
Jet Parts Engineering, LLC. (Jpe)Spool, Sealing 335-295-702JP-0335-295-702-0CFM International, S.A. CFM56-7B18, CFM56-7B18/3, CFM56-7B202020-11-26current
Unison Industries LLC - DaytonSpool - Hold Open Rod ER6245P01ER6245P01The Boeing Company 787-8, 787-9, 787-102020-10-19current
Extex Engineered Products INCSpool, Servo TAI-C42642-40C42642-40Bell Helicopter Textron 206L 206L-1 206L-32016-09-07current
Extex Engineered Products INCSpool TAI-C42641-33C42641-33Bell Helicopter Textron 206A, 206B2016-09-07current
Extex Engineered Products INCSpool, Bypass TAI-C42642-38C42642-38Bell Helicopter Textron 206L 206L-1 206L-32016-09-07current
Extex Engineered Products INCSpool TAI-C42641-31C42641-31Bell Helicopter Textron 206A, 206B2016-09-07current
Aviation Materials Management, INCSpool 161W3125-3161W3125-3Boeing 777-200 Series, 777-300 Series2015-02-12current
Aviation Materials Management, INCSpool 161W3125-1161W3125-1Boeing 777-200 Series, 777-300 Series2015-02-12current
Aviation Materials Management, INCSpool Assembly 161A6111-1161A6111-1Boeing 737-600 Series, 737-700 Series,...2015-02-12current
Aviation Materials Management, INCSpool 161W3125-2161W3125-2Boeing 777-200 Series, 777-300 Series2015-02-12current
Aviation Materials Management, INC.Spool Assembly 161A6111-1161A6111-1Boeing 737-600 Series, 737-700 Series,...2014-09-04current
Aviation Materials Management, INC.Spool 161W3125-2161W3125-2Boeing 777-200 Series, 777-300 Series2014-09-04current
Aviation Materials Management, INC.Spool 161W3125-1161W3125-1Boeing 777-200 Series, 777-300 Series2014-09-04current
Aviation Materials Management, INC.Spool 161W3125-3161W3125-3Boeing 777-200 Series, 777-300 Series2014-09-04current
Aviation Materials Management INCSPOOL ASSY 161T6047-3161T6047-3Boeing 767-200 SERIES, 767-300 SERIES,...2013-03-25current
Aviation Materials Management INCSpool 161W3125-2161W3125-2Boeing 777-200 Series, 777-300 Series2013-03-24current
Aviation Materials Management INCSpool 161W3125-1161W3125-1Boeing 777-200 Series, 777-300 Series2013-03-24current
Aviation Materials Management INCSpool 161W3125-3161W3125-3Boeing 777-200 Series, 777-300 Series2013-03-24current
Aviation Materials Management INCSpool Assembly 161A6111-1161A6111-1Boeing 737-600 Series, 737-700 Series,...2013-02-26current
Aerospace Component Manufacturing & EngineeringSpool Assembly ACME43960ACO43960Eurocopter France AS350B, AS350B1, AS350B22011-12-27current
Jet Parts Engineering, INC. (Jpe)Spool, Sealing 335-295-702JP-0335-295-702-0CFM International, S.A. CFM56-7B18, CFM56-7B18/3, CFM56-7B202011-11-15current
Aviation Materials Management INCSpool Assembly 161A6111-1161A6111-1Boeing 737-600 Series, 737-700 Series,...2010-10-05current
Aviation Materials Management INCSpool 161W3125-1161W3125-1Boeing 777-200 Series, 777-300 Series2010-08-08current
Aviation Materials Management INCSpool 161W3125-3161W3125-3Boeing 777-200 Series, 777-300 Series2010-08-08current
Aviation Materials Management INCSpool 161W3125-2161W3125-2Boeing 777-200 Series, 777-300 Series2010-08-08current
Jet Avion Corporation A Heico Aerospace CompanySpool JA161T6047-8A161T6047-8Boeing 767-200 Series 767-300 Series...2010-05-25current
Jet Avion Corporation A Heico Aerospace CompanySpool Assembly JA161T6047-9A161T6047-9Boeing 767-200 Series 767-300 Series...2010-05-25current
Jet Avion Corporation A Heico Aerospace CompanySpool Assembly JA161T6047-9A161T6047-9Boeing 767-200 Series 767-300 Series...2010-05-25current
Jet Avion Corporation A Heico Aerospace CompanySpool JA161T6047-8A161T6047-8Boeing 767-200 Series 767-300 Series...2010-05-25current
Jet Avion Corporation A Heico Aerospace CompanySpool JA161T6047-8A161T6047-8ABoeing 767-200 Series 767-300 Series...2010-04-27current
Jet Avion Corporation A Heico Aerospace CompanySpool JA161T6047-8A161T6047-8ABoeing 767-200 Series 767-300 Series...2010-04-27current
Jet Avion Corporation A Heico Aerospace CompanySpool Assembly JA161T6047-9A161T6047-9ABoeing 767-200 Series 767-300 Series...2010-04-27current
Jet Avion Corporation A Heico Aerospace CompanySpool Assembly JA161T6047-9A161T6047-9ABoeing 767-200 Series 767-300 Series...2010-04-27current
Gemini EngineeringSPOOL ASSY 162T3012-2162T3012-2Boeing 767-200 Series, 767-300 Series,...2009-11-15current
Gemini Engineering INCSPOOL ASSY 162T3012-2162T3012-2Boeing 767-200 Series, 767-300 Series,...2009-11-15current
Gemini Engineering INCSPOOL ASSY 161N3013-1161N3013-1Boeing 757-200 Series, 757-200CB Series,...2009-11-15current
Gemini EngineeringSPOOL ASSEMBLY 161A6111-1161A6111-1Boeing 737-600 Series, 737-700 Series,...2009-06-03current
Gemini EngineeringSPOOL 161W3125-1161W3125-1Boeing 777-200 Series, 777-300 Series2009-06-03current
Goodrich Landing GearSPOOL 161N3013-3161N3013-3Boeing 757-200 SERIES, 757-200CB SERIES,...2009-04-09current
Goodrich Landing GearSPOOL ASSY 65B08839-365B08839-3Boeing 747-100B SERIES, 747-100B SUD...2009-04-09current
Goodrich Landing GearSPOOL ASSY 161N3013-1161N3013-1Boeing 757-200 SERIES, 757-200CB SERIES,...2009-04-09current
Goodrich Landing GearSPOOL 65B08839-465B08839-4Boeing 747-100B SERIES, 747-100B SUD...2009-04-09current
Goodrich Landing GearSPOOL ASSY 65B08839-365B08839-3Boeing 747-100B SERIES, 747-100B SUD...2009-04-09current
Goodrich Landing GearSPOOL ASSY 161N3013-1161N3013-1Boeing 757-200 SERIES, 757-200CB SERIES,...2009-04-09current
Goodrich Landing GearSPOOL 161N3013-3161N3013-3Boeing 757-200 SERIES, 757-200CB SERIES,...2009-04-09current
Goodrich Landing GearSPOOL 65B08839-465B08839-4Boeing 747-100B SERIES, 747-100B SUD...2009-04-09current
Gemini EngineeringSpool AFA0082-501AFA0082-501McDonnell Douglas DC-10-10, DC-10-10F, DC-10-152007-08-27current
Spirit Aerosystems INCSPOOL ASSY 315T4157-2315T4157-2Boeing 747-400 SERIES, 747-400F SERIES...2007-03-02current
Sonic Industries INCSPOOL 161T6047-7161T6047-7Boeing 767-400ER SERIES2006-05-15current
Spirit Aerosystems INCSPOOL ASSY 315T4157-2315T4157-2Boeing 747-400 SERIES, 747-400F SERIES...2005-12-16current
Vision Air INCSpool, Bypass VA-C42642-38Ronson C42642-38Bell 206L, 206L1, 206L32002-04-28current
Vision Air INCSpool, Servo Actuator VA-C42641-33Ronson C42641-33Bell 206A, 206B2002-04-28current
Vision Air INCSpool, Servo VA-C42642-40Ronson C42642-40Bell 206L, 206L1, 206L32002-04-28current
Vision Air INCSpool, Servo Actuator VA-C42641-31Ronson C42641-31Bell 206A, 206B2002-04-28current
Pacific Sky Supply INCSpool - Coil 6517818PAllison 6517818Pacific Propeller A6441FN6061993-09-20current

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.