The U.S. aircraft register, updated daily
Parts

Cross

No failure report names the cross. 144 FAA approvals let 9 companies make a replacement cross, Aerofit INC holding the most (57).

Approved replacement parts 144 parts manufacturer approvals

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

For these models most: Boeing 747 (83), Boeing 737 (34), Boeing 767 (21), Boeing 757 (16), Boeing 777 (6).

MakerPartReplacesFitsGrantedStatus
Spirit Aerosystems INCCROSS 69-60059-169-60059-1Boeing 737-200 SERIES, 737-200C SERIES,...2011-03-30current
Gemini EngineeringCROSS 69-60059-169-60059-1Boeing 737-100 Series, 737-200 Series,...2009-11-15current
Gemini Engineering INCCROSS 69-60059-169-60059-1Boeing 737-100 Series, 737-200 Series,...2009-11-15current
Aws (USA) INCCROSS 69-60059-1(69-60059-1)Boeing 737-200 SERIES, 737-200C SERIES,...2009-07-26current
Aws (USA) INCCROSS ASSY 65B83427-1(65B83427-1)Boeing 747-100 SERIES, 747-100B SERIES,...2009-07-26current
Spirit Aerosystems INCCROSS 69-60059-169-60059-1Boeing 737-200 SERIES, 737-200C SERIES,...2009-06-14current
Gemini EngineeringCROSS 69-60058-169-60058-1Boeing 737-100 Series, 737-200 Series,...2008-08-12current
Sonic Industries INCCROSS 69-60059-169-60059-1Boeing 737-100 SERIES, 737-200 SERIES,...2006-05-15current
Aerofit INCCross BACC27L10101008BACC27L10101008Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L12061210BACC27L12061210Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L10100808BACC27L10100808Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L16161006BACC27L16161006Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L08080804BACC27L08080804Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L16161608BACC27L16161608Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L10100606BACC27L10100606Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L10100404BACC27L10100404Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L12121010BACC27L12121010Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L121R1006BACC27L121R1006Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L08080806BACC27L08080806Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L12121006BACC27L12121006Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L10061008BACC27L10061008Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L06061206BACC27L06061206Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L161612BACC27L161612Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L12060606BACC27L12060606Boeing 747-100, 747-200, 747-3002005-12-15current
Aerofit INCCross BACC27L10061006BACC27L10061006Boeing 737-100, 737-200, 737-3002005-12-15current
Aerofit INCCross BACC27L12121010BACC27L12121010Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L12060606BACC27L12060606Boeing 757-2002004-05-17current
Aerofit INCCross BACC27L161612BACC27L161612Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L121R1006BACC27L121R1006Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L06061206BACC27L06061206Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L12061210BACC27L12061210Boeing 747-400, 757-2002004-05-17current
Aerofit INCCross BACC27L10081006BACC27L10081006Boeing 737-100, 737-200, 747-1002004-05-17current
Aerofit INCCross BACC27L10100808BACC27L10100808Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L10101008BACC27L10101008Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L10100606BACC27L10100606Boeing 747-4002004-05-17current
Aerofit INCCross BACC27L1616010BACC27L1616010Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L08080804BACC27L08080804Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L16161006BACC27L16161006Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L10100404BACC27L10100404Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L08080806BACC27L08080806Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L10061008BACC27L10061008Boeing 737-100, 737-200, 737-3002004-05-17current
Aerofit INCCross BACC27L12121006BACC27L12121006Boeing 737-100, 737-200, 737-3002004-05-17current
Aerofit INCCross BACC27L10061006BACC27L10061006Boeing 747-100, 747-200, 747-3002004-05-17current
Aerofit INCCross BACC27L16161212BACC27L16161212Boeing 777-2002004-05-17current
Aerofit INCCross BACC27L16161608BACC27L16161608Boeing 777-2002004-05-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC08060606TBACC27AC08060606TBoeing 757-200, 757-200PF, 757-200CB 757-300 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10060606TBACC27AC10060606TBoeing 737-100, 737-200, 737-200C 737-3002001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10100808WBACC27AC10100808WBoeing 777-200, 777-300 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC08060606WBACC27AC08060606WBoeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16081212JBACC27AC16081212JBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10061006TBACC27AC10061006TBoeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16160606TBACC27AC16160606TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10061006WBACC27AC10061006WBoeing 737-300, -400, -500 -6002001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12121210WBACC27AC12121210WBoeing 737-600, 737-700, 737-800 767-2002001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12121006TBACC27AC12121006TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC06060610TBACC27AC06060610TBoeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16061212TBACC27AC16061212TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12121006JBACC27AC12121006JBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16121212JBACC27AC16121212JBoeing 777-200, 777-300 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16081206TBACC27AC16081206TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10101004WBACC27AC10101004WBoeing 747-100, 747-100B 747-100B SUD...2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC06060604T6BACC27AC06060604T6Boeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12101008JBACC27AC12101008JBoeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16081212TBACC27AC16081212TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10101008JBACC27AC10101008JBoeing 757-200, 757-200PF, 757-200CB 757-300 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16081206FBACC27AC16081206FBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12061006JBACC27AC12061006JBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12120808JBACC27AC12120808JBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10061008WBACC27AC10061008WBoeing 747SP, 747SR 747-400, 747-400D2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16061212KBACC27AC16061212KBoeing 777-200, 777-300 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC08080606TBACC27AC08080606TBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC10061006JBACC27AC10061006JBoeing 737-600, 737-700, 737-800 SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC12121206WBACC27AC12121206WBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Airdrome Parts Company LLCCROSS, TUBE, FLARELESS-REDUCER, AL, CRES, STEEL, AND TITANIUM BACC27AC16160606JBACC27AC16160606JBoeing 767-200, 767-300, 767-300F SERIES2001-07-17current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD10061006WBACC27AD10061006WBoeing 757-200, -200PF, -200CB2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD05050505WNBACC27AD05050505WNBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12080812JBACC27AD12080812JBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12081212JBACC27AD12081212JBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12061212JNBACC27AD12061212JNBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD10061006BACC27AD10061006Boeing 757-200, -200PF, -200CB SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD06060606JBACC27AD06060606JBoeing 757-200, -200PF, -200CB2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD06060610KNBACC27AD06060610KNBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12061212WNBACC27AD12061212WNBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD08081212JBACC27AD08081212JBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12100610JBACC27AD12100610JBoeing 767-200, -300, -300F SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12060812BACC27AD12060812Boeing 737-100, -200, -200C2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD08080808WBACC27AD08080808WBoeing 757-200, -200PF, -200CB2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12061608BACC27AD12061608Boeing 757-200, -200PF -200CB SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD05051905WBACC27AD05051905WBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD06040606JBACC27AD06040606JBoeing 767-200, -300, -300F SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD08081010JBACC27AD08081010JBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12121010WBACC27AD12121010WBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD04040404WNBACC27AD04040404WNBoeing 747-100B, -100, -200B2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12121216JBACC27AD12121216JBoeing 767-200, -300, -300F SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD16061616WNBACC27AD16061616WNBoeing 757-200, -200PF, -200CB SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD12061608WBACC27AD12061608WBoeing 757-200, -200PF, -200CB SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD04040810WBACC27AD04040810WBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD08061212RNBACC27AD08061212RNBoeing 777-200, -300 Series2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD06060608KNBACC27AD06060608KNBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross, Tube, Flareless-Swivel, Reducer And Nom. Size,... BACC27AD08061010RNBACC27AD08061010RNBoeing 737-600, -700, -800 SERIES2000-02-28current
Faber Enterprises INCCross- BACC27L12121006BACC27L12121006Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L12121010BACC27L12121010Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L12061210BACC27L12061210Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L10100808BACC27L10100808Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L16161212BACC27L16161212Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L10061006BACC27L10061006Boeing 737-100, -200, -3002000-01-26current
Faber Enterprises INCCross- BACC27L10081006BACC27L10081006Boeing 737-100, -200, 747-1002000-01-26current
Faber Enterprises INCCross BACC27L08080806BACC27L08080806Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross- BACC27L10061008BACC27L10061008Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross- BACC27L06061206BACC27L06061206Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L161612BACC27L161612Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L16161010BACC27L16161010Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross- BACC27L16161608BACC27L16161608Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L121R1006BACC27L121R1006Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross- BACC27L10100404BACC27L10100404Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L16161006BACC27L16161006Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L10101008BACC27L10101008Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L12060606BACC27L12060606Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L08080804BACC27L08080804Boeing 747-100, -200, -3002000-01-26current
Faber Enterprises INCCross BACC27L10100606BACC27L10100606Boeing 747-100, -200, -3002000-01-26current
Aerofit INCCross BACC27L16161608Boeing BACC27L16161608Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L08080806Boeing BACC27L08080806Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L121R1006Boeing BACC27L121R1006Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L12121010Boeing BACC27L12121010Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L12061210Boeing BACC27L12061210Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10100808Boeing BACC27L10100808Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10061008Boeing BACC27L10061008Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L08080804Boeing BACC27L08080804Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L16161006Boeing BACC27L16161006Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L161612Boeing BACC27L161612Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L06061206Boeing BACC27L06061206Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10100404Boeing BACC27L10100404Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10061006Boeing BACC27L10061006Boeing 737-100, 737-200, 737-3001999-05-11current
Aerofit INCCross BACC27L10100606Boeing BACC27L10100606Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L16161212Boeing BACC27L16161212Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10101008Boeing BACC27L10101008Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L12060606Boeing BACC27L12060606Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L10081006Boeing BACC27L10081006Boeing 737-100, 737-200, 747-1001999-05-11current
Aerofit INCCross BACC27L12121006Boeing BACC27L12121006Boeing 747-100, 747-200, 747-3001999-05-11current
Aerofit INCCross BACC27L1616010Boeing BACC27L1616010Boeing 747-100, 747-200, 747-3001999-05-11current
Crane ResistoflexCross R45114T-16161620OEMLockheed L-1011-3851995-10-18current
Crane ResistoflexCross R45114T-12201620OEMLockheed L-1011-3851995-10-18current
Crane ResistoflexCross R44114T-06OEMLockheed L-1011-3851995-10-18current
Crane ResistoflexCross R45114T-12162020OEMLockheed L-1011-3851995-10-18current

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.