The U.S. aircraft register, updated daily
Parts

Cabin Door

0 failure reports named the cabin door in the last ten years, 1 since 1997. 142 FAA approvals let 22 companies make a replacement cabin door, LP Aero Plastics INC holding the most (71).

Reports by year

0001111997
Reports by year, as a table
reports
19971

Approved replacement parts 142 parts manufacturer approvals

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

For these models most: Piper PA-28 Cherokee, Warrior, Archer and Arrow (25), Piper PA-34 Seneca (16), Piper PA-32 Cherokee Six, Lance and Saratoga (16), Piper PA-44 Seminole (9), Cessna 402 (7), Cessna 337 Skymaster (7), Sikorsky S-76 (6), Piper PA-39 Twin Comanche C/R (6), Piper PA-30 Twin Comanche (6), Piper PA-24 Comanche (6), Learjet 24 (6), Cessna T337 (5).

MakerPartReplacesFitsGrantedStatus
Airbus Helicopters, INC.Cabin Door Post and Door Latching Mechanism SK212-10418-02Modification PartAirbus Helicopters... BO 105 C2018-01-16current
Airbus Helicopters, INC.Cabin Door Post and Door Latching Mechanism SK212-10418-1Modification PartAirbus Helicopters... BO 105 C2018-01-16current
Airforms LLCAFT Cabin Door Trim AF-GA8-252025-085GA8-252025-085GA 8 Airvan Pty) Ltd (GA8, GA8-TC3202017-10-29current
Helifab, INC.Aft Cabin Door Hinges 5201-01Modification PartSikorsky S76A, B, C2016-01-17current
Helifab, INC.Aft Cabin Door Hinges 5201-02Modification PartSikorsky S76A, B, C2016-01-17current
Sterling Aviation Technologies INCUpper Cabin Door Handle Assembly SA10700Modification PartPiper PA-38-1122014-11-17current
Sterling Aviation Technologies INCCabin Door Loop Assembly SA1040077522-02Piper PA-38-1122014-11-17current
Avcon Industries INCCabin Door Mod. for Camera Kit 24525000Modification PartLearjet 24 & 252010-02-03current
Avcon Industries INCCabin Door Mod. For Camera Kit 2425001Modification PartGates Learjet 232010-02-03current
Avcon Industries INCCabin Door Camera Mod. 2425001Modification PartGates Learjet 24, 24A, 24B2010-02-03current
Avcon Industries INCCabin Door Mod. For Camera Kit 2425001Modification PartLearjet 24, 24A, 24B2010-02-03current
Helifab, INC.Aft Cabin Door Hinges 5201-02Modification PartSikorsky S76A, B, C2009-03-16current
Helifab, INC.Aft Cabin Door Hinges 5201-01Modification PartSikorsky S76A, B, C2009-03-16current
Avcon Industries INCCabin Door Modification for Camera Kit 2425001Modification PartLearjet 24, 24A, 24B2008-09-22current
Avcon Industries INCCabin Door Mod for Camera Kit 2425000Modification PartLearjet 24 & 252008-09-22current
Avcon Industries INCCabin Door Camera Mod 2425001Modification PartLearjet 24, 24A, 24B2008-09-22current
Avcon Industries INCCabin Door Mod. For Camera Kit 2425001Modification PartLearjet 232008-09-22current
Aircraft Door SealsCabin Door Forward Edge Seal (Between Hinges) ADS-1200-11x (102) NO. # 35-400405Beechcraft 50 (L-23A), B50 (L-23B), C502008-02-04current
Aircraft Door SealsCabin Door Forward Edge Seal (Between Hinges) ADS-1200-1135-400320-50, 36-420010-15, 36-420010-25Beechcraft 35, A35, B352008-02-04current
Aircraft Door SealsCabin Door Forward Edge Seal (Between Hinges) ADS-1200-1135-400320-50, 36-420010-25Beechcraft 35-33, 35-A33, 35-B332008-02-04current
Aircraft Door SealsCabin Door Forward Edge Seal Cont. ADS-1200-1135-400320-50, 36-420010-25, 36-420010-27,...Beechcraft B95A, D95A, E952008-02-04current
LP Aero Plastics INCUpper Cabin Door Window-Left #4 Window 742CessnaP/N 5211134-5 (green tint)Cessna 402C2007-12-26current
LP Aero Plastics INCRight Front Cabin Door Window 180BeechcraftP/N 169-420010-71 (s/s...Beechcraft A23 thru B23, A23-24, A23-19 thru M19A2007-12-26current
LP Aero Plastics INCRight Front Cabin Door Window 266BeechcraftP/N 169-420036-8 (169-420038-8 green tint)Beechcraft C23, A24, B192007-12-26current
LP Aero Plastics INCRight Front Cabin Door Window 109BeechcraftP/N 169-420036-120 (169-420038-56 green tint)Beechcraft C23, B19, B24R thru C24R2007-12-26current
LP Aero Plastics INCRight Front Cabin Door Window 174BeechcraftP/N 105-420015-16 (169-420038-72 green tint)Beechcraft C23, C24R2007-12-26current
LP Aero Plastics INCLeft Front Cabin Door 131BeechcraftP/N 169-440023-15 (169-440021-19 green tint)Beechcraft A23A thru B23, A23-24, A23-19 thru M19A2007-12-26current
LP Aero Plastics INCLeft #5 cabin door window 672Cessna P/N 5811152-5 (green tint) (s/s 5811180-15)Cessna 4042007-12-26current
LP Aero Plastics INCRight cabin door window - Non-openable 424Cessna P/N 0517024-11, (0517024-13 green tint)Cessna 172P, 172Q, F172P2007-12-26current
LP Aero Plastics INCCabin door window - inner 859Piper P/N 54714-05 (54714-06 green tint)Piper PA-31-325, PA-31-350, PA-31T32007-12-26current
LP Aero Plastics INCCabin Door Window 548Cessna0811486-6Cessna 3102007-12-11current
LP Aero Plastics INCRight Front Cabin Door Window - Inner 760Cessna1511160-1Cessna 337G thru 337H or T337H, F337G thru...2007-12-11current
LP Aero Plastics INCRight Front Cabin Door Window - Outer 759Cessna1517102-1 (Green Tint)Cessna 337G thru 337H or T337H, F337G thru...2007-12-11current
LP Aero Plastics INCLeft cabin door window 866Britten NormanP/N NB-15-D-1179Britten Norman BN-2A, BN-2A Mark III, BN-2A Mark III-22007-12-11current
LP Aero Plastics INCCabin Door Window 956Piper P/N 79475-59 79475-60 (Tinted)Piper PA-28-181, PA-28-201T, PA-28R-2012007-11-27current
LP Aero Plastics INCCabin Door Window 956, 956.187, 956.250Piper P/N 79475-59 79475-60 (Tinted)Piper PA-44-180 PA-44-180T2007-11-27current
LP Aero Plastics INCCabin Door Window 956, 956.187, 956.250Piper P/N 79475-59 79475-60 (Tinted)Piper PA-28-151 PA-28-161 PA-28-180...2007-11-27current
LP Aero Plastics INCCabin Door Window Left or Right 379Cessna P/N 1610004-21 (-22 green tint)Cessna 188, A1882007-11-27current
LP Aero Plastics INCLeft cabin door window 684CessnaP/N 5211190-6 (Green Tint, supercedes 5011190-6)Cessna 401B, 402B2007-11-27current
LP Aero Plastics INCCabin Door Window 955Piper P/N 79475-20 (79475-58 Tinted)Piper PA-28-181, PA-28-201T, PA-28R-2012007-11-27current
LP Aero Plastics INCRight front cabin door window 291Bellanca P/N 4-1446Bellanca 7ECA, 7GCAA, 7GCBC2007-11-27current
LP Aero Plastics INCUpper Cabin Door Window 034Cessna P/N 5011190-5 (Green Tint)Cessna 401/402 thru 401B/402B, 411, 411A2007-11-27current
LP Aero Plastics INCLeft cabin door double window 638Rockwell P/N 330002-221 or 5330002-221Gulfstream 500-A, 500-B, 500-S2007-11-20current
LP Aero Plastics INCCabin door window - right front 954PiperP/N 79475-56, 79475-57 (tinted)Piper PA-32-260, PA-32-300, PA-32R-3002007-11-20current
LP Aero Plastics INCCabin door window - right front 953PiperP/N 79475-05, 79475-55 (tinted)Piper PA-32-260, PA-32-300, PA-32R-3002007-11-20current
LP Aero Plastics INCRight Front Cabin Door Window 782PiperP/N 63006-06Piper PA-28-140, PA-28-150, PA-28-1602007-11-15current
LP Aero Plastics INCAft Cabin Door Window - Left 924PiperP/N 99069-00Piper PA-32-260, PA-32-300, PA-32R-3002007-11-15current
LP Aero Plastics INCRight Front Cabin Door Window-Outer 790PiperP/N 65631-05Piper PA-28-2352007-11-15current
LP Aero Plastics INCRight Front Cabin Door Window 939PiperP/N 79040-00Piper PA-28-140, PA-32-260, PA-32-3002007-11-15current
LP Aero Plastics INCRight Cabin Door Window 444Helio Aircraft P/N 391-030-334Helio Aircraft H-295, HT-2952007-11-15current
LP Aero Plastics INCCabin Door Window 136, 136.187, 136.250Mooney Aircraft P/N 340121-11Mooney Aircraft M20C, M20D, M20E2007-11-15current
LP Aero Plastics INCCabin Door Window - Inner 614Piper P/N 31013-02Piper PA-23-2502007-11-15current
LP Aero Plastics INCRight Front Cabin Door Window 939, 939.187, 939.250PiperP/N 79040-00/ 63006-06Piper PA-28-140, PA-28-150, PA-28-1602007-11-15current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581 SeriesModification PartCessna 500, 550 & 5602006-06-22current
Sierra Industries, LTD.Replacement Cabin Door Optically Flat Window Kit 91A760 SeriesModification PartCessna 5602006-06-22current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581 SeriesModification PartCessna 501 & 5512006-06-22current
Sierra Industries, LTD.Cabin Door Optically Flat Window Kit 91A760 SeriesModification PartCessna 5602006-06-22current
LP Aero Plastics INCLeft Cabin Door Window 5811152-55811152-5Reims Aviation S.A. F4062005-06-22current
LP Aero Plastics INCLeft Cabin Door Window 5811152-55811152-5Reims Aviation S.A. F4062004-03-24current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Cabin Door Window assembly R/H 120-544-202C563S2101204Eurocopter France EC120B Helicopter2004-02-22current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Cabin Door Window assembly R/H 120-544-102C563S1110051Eurocopter France EC120B Helicopter2004-02-22current
American Eurocopter LLCCabin Door Post and Door Latching Mechanism SK212-10418-1Modification PartEurocopter Deutschland BO-105C2003-08-10current
American Eurocopter LLCCabin Door Post and Door Latching Mechanism SK212-10418-1Modification PartEurocopter Deutschland BO-105C2003-08-10current
American Eurocopter LLCCabin Door Post and Door Latching Mechanism SK212-10418-2Modification PartEurocopter Deutschland BO-105C2003-08-10current
American Eurocopter LLCCabin Door Post and Door Latching Mechanism SK212-10418-2Modification PartEurocopter Deutschland BO-105C2003-08-10current
LP Aero Plastics INCRight Front Cabin Door Window 253.375Beechcraft 95-420012-17 (green tint),...Raytheon Beech) (35-33 thru G33, 35-C33A thru...2002-02-13current
LP Aero Plastics INCUpper Cabin Door Window-Left number 4 Window 742Cessna 5211134-5 (green tint)Cessna 402C2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 253.250Beechcraft 95-420012-17 (green tint),...Raytheon Beech) (35-33 thru G33, 35-C33A thru...2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 180Beechcraft 169-420010-71 (s/s 169-420010-17)...Beech Raytheon) (A23 thru B23, A23-24,...2002-02-13current
LP Aero Plastics INCLeft Front Cabin Door 131Beechcraft 169-440023-15 (169-440021-19 green tint)Beech Raytheon) (A23A thru B23, A23-24,...2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 266Beechcraft 169-420036-8 (169-420038-8 green tint)Beech Raytheon) (C23, A24, B192002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 253.250Beechcraft 95-420012-17 (green tint),...Raytheon Beech) (95-55 thru 95-B55A, 95-C55...2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 253.375Beechcraft 95-420012-17 (green tint),...Raytheon Beech) (95-55 thru 95-B55A, 95-C55...2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 174Beechcraft 105-420015-16 (169-420038-72 green tint)Beech Raytheon) (C23, C24R2002-02-13current
LP Aero Plastics INCRight Front Cabin Door Window 109Beechcraft 169-420036-120 (169-420038-56 green tint)Beech Raytheon) (C23, B19, B24R thru C24R2002-02-13current
D & D Design INCCabin Door Pressure Advisory System N/ANoneGulfstream G-IV2002-01-03current
Aviation EnterprisesCabin Door Assembly AE 1411200-91411200-9Cessna 336 series2001-11-06current
Aviation EnterprisesCabin Door Assembly AE 1511230-11511230-1Cessna 336 series, 337 series, T337 series2001-11-06current
Aviation EnterprisesCabin Door Assembly AE 1517000-101517000-10Cessna 337 series, T337 series2001-11-06current
Aviation EnterprisesCabin Door Chain AE 1511427-231511427-23Cessna 337 series, T337 series, P337 series2001-11-06current
Aviation EnterprisesCabin Door Assembly AE 1411200-131411200-13Cessna 337 series, T337 series2001-11-06current
Aviation EnterprisesCabin Door Assembly AE 1517000-11517000-1Cessna 337 series, T337 series2001-11-06current
Aviation EnterprisesAft cabin door window 99069-0399069-03Piper PA-32 series, PA-34 series2001-09-16current
Aviation EnterprisesAft cabin door window 99069-0099069-00Piper PA-32 series, PA-34 series2001-09-16current
Keystone Helicopter CorporationCabin Door Pull Assembly And Installation 33776-5258933776-52589Sikorsky S76C2001-06-10current
Keystone Helicopter CorporationCabin Door Filler Installation 33776-5755533776-57555Sikorsky S76C2001-06-10current
Nordam Transparency DivCabin Door Window Assy M206-R-309L-1, -2, -16, -17BELLHelicopter 206-033-600-005, -107, -117,...BELL 206L, L-1, L-31999-10-12current
Nordam Transparency DivCabin Door Window Assy M212-713-1BELLHelicopter 205-030-713-5BELL 205A, 205A-1, 2121999-10-12current
Nordam Transparency DivCabin Door Window Assy Fwd. M206-R-309-1, -2, -16, -17BELLHelicopter 206-031-500-101, -107, -147,...BELL 206A, B1999-10-12current
Nordam Transparency DivCabin Door Windows MH12E-64093, -1, -2, -3,...Hiller Aviation64093-1, -2, -3, -4, -5, -7 64090-4, -6Hiller Aviation UH12, UH12A, UH12B1999-10-12current
Nordam Transparency DivCabin Door Windows M-H12E64093-36, -37, -38-39Hiller Aviation64093Hiller Aviation UH12E41999-10-12current
Machen INCCabin Door 980162-503Piper 980162-501Aerostar Aircraft PA-60-601P, -602P & -700P1999-02-18current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581Modification PartCessna Model 501 & 5511998-07-28current
Sierra Industries, LTD.Cabin Door Optically Flat Window Kit 91A760Modification PartCessna Model 5601998-07-28current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581Modification PartCessna Model 500, 550, & 5601998-07-28current
Sierra Industries, LTD.Replacement Cabin Door Optically Flat Window Kit 91A760Modification PartCessna Model 5601998-07-28current
Sierra Industries, LTD.Replacement Cabin Door Optically Flat Window Kit 91A760Modification PartCessna Model 5601998-02-02current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581Modification PartCessna Model 500, 550, & 5601998-02-02current
Sierra Industries, LTD.Cabin Door Optically Flat Window Kit 91A760Modification PartCessna Model 5601998-02-02current
Sierra Industries, LTD.Replacement Cabin Door Hinge Assembly Kit 91D581Modification PartCessna Model 501 & 5511998-02-02current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 964.187Piper 79475-20, (79475-58 Tinted), 79475-59,...Piper PA-28-151, PA-28-161, PA-28-1811997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 117Piper 20923-11 & 24117-00Piper PA-24-180, PA-24-250, PA-24-2601997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 916.187Piper 76150-04, (76150-02 Tinted), 76435-00,...Piper PA-28-151, PA-28-180, PA-28-1811997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window 944, 944.187, 944.250Piper 63006-06 (66848-04 Tinted) 65631-05...Piper PA-32-260, PA-32-300, PA-32R-3001997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 964.25Piper 79475-20, (79475-58 Tinted), 79475-59,...Piper PA-28-151, PA-28-161, PA-28-1811997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 916Piper 76150-04, (76150-02 Tinted), 76435-00,...Piper PA-28-151, PA-28-180, PA-28-1811997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 916.25Piper 76150-04, (76150-02 Tinted), 76435-00,...Piper PA-28-151, PA-28-180, PA-28-1811997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 117.25Piper 20923-11 & 24117-00Piper PA-24-180, PA-24-250, PA-24-2601997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 117.187Piper 20923-11 & 24117-00Piper PA-24-180, PA-24-250, PA-24-2601997-11-09current
LP Aero Plastics INCRight Front Cabin Door Window (With vent opening cutout) 964Piper 79475-20, (79475-58 Tinted), 79475-59,...Piper PA-28-151, PA-28-161, PA-28-1811997-11-09current
Nordam-TexasCabin Door Window Assembly M206-R-309L -1, -2, -16, -17Bell Helicopter 206-033-600-005, -107, -117,...Bell 206L, L-1, L-31997-08-20current
Nordam-TexasCabin Door Window Assembly M206-R-309L-1, -2, -16, -17Bell Helicopter 206-033-600-005, -107, -117,...Bell 206L, L-1, L-31997-02-12current
Nordam-TexasCabin Door Window Assembly Fwd M206-R-309-1, -2, -16, -17Bell Helicopter 206-031-500-101, -107, -147,...Bell 206A, B1997-02-12current
Nordam-TexasCabin Door Windows MH12E-64093, -1, -2, -3,...Hiller 64093-1, -2, -3, -4, -5, -7, 64090-4, -6Hiller Aviation UH12, UH12A, UH12B1997-02-12current
Nordam-TexasCabin Door Window Assembly M212-713-1Bell Helicopter 205-030-713-5Bell 205, 205A, 205A-11997-02-12current
Nordam-TexasCabin Door Windows M-H12E-64093-36, -37, -38-39Hiller 64093Rogerson Hiller UH12E41997-02-12current
Webco Aircraft COCabin Door Hinge Pin W20830-000Piper Cabin Door Hinge Pin 20830-000Piper PA-24, PA-30, PA-391995-01-31current
LP Aero Plastics INCRight Front Cabin Door Window 939Piper 79040-00Piper PA-28-140 S/N 28-20002 through...1994-11-21current
LP Aero Plastics INCRight Front Cabin Door Window-Outer 790Piper 65631-05Piper PA-28-235 S/N 28-10720 through 28-72100331994-11-21current
LP Aero Plastics INCCabin Door Window 917, 917.187, 917.250Piper 76435-00, 76435-02 (Gray Tint)Piper PA-28-151 S/N 28-7415001 thru...1994-11-21current
LP Aero Plastics INCRight Front Cabin Door Window 782Piper 63006-06Piper PA-28R-200 S/N 28R-30482, 28R-35001...1994-11-21current
LP Aero Plastics INCAft Cabin Door Windlow-Left 924Piper 99069-00Piper PA-34-200T S/N 34-7570001 through...1994-11-21current
LP Aero Plastics INCCabin Door Window Inner 791Piper 65631-04Piper PA-28-235 S/N 28-11040 through 28-72100331994-11-15current
LP Aero Plastics INCCabin Door Window 903Piper 76150-04 76150-02 (Gray Tint)Piper PA-28-151 S/N 28-7415001 through...1994-11-15current
Branson Aircraft CORPCabin Door Dwg LIST DL91500Modification PartCessna 500, 550, & 5601994-11-08current
LP Aero Plastics INCCabin Door Window Right Front 953A (Pipr 79475-05 (-55 tinted))Piper PA-32-260 S/N 32-7600002 thru...1994-10-27current
LP Aero Plastics INCCabin Door Window 955 [Piper 79475-20...Piper PA-28RT-201 S/N 28R-7918001 thru...1994-10-02current
LP Aero Plastics INCCabin Door Window 956, 956.187, 956.250Piper 79475-59, 79475-60 (Tinted)Piper PA-28-236 S/N 28-7911001 and up,...1994-10-02current
LP Aero Plastics INCCabin Door Window - Inner 182Piper 24117-00Piper PA-24-260 S/N 24-3642, 24-2000...1994-09-21current
LP Aero Plastics INCCabin Door Window - Outer 181Piper 20923-11Piper PA-24 or 250 S/N 24-1 through...1994-09-21current
LP Aero Plastics INCAFT Cabin Door 940.187, 940.250Piper 99069Piper PA-34-200 S/N 34-7450001 thru...1994-02-27current
LP Aero Plastics INCRight Front Cabin Door Window 939, 939.187, 939.250Piper 63006, 66848, 79040Piper PA-28-235 S/N 28-10003 thru...1994-02-27current
LP Aero Plastics INCRight Front Cabin Door Window 954, 954.187, 954.250Piper 79475Piper PA-32-301 S/N 32-8006001 and up,...1994-02-27current
Globe Fiberglass LTD INCCabin Door Upper GF79542-04Piper 79542-04Piper PA-44-180/-180T, PA-28-140 S/N...1994-02-08current
LP Aero Plastics INCCabin Door Window 586.250Mooney 340121-021 (Green tint)Mooney Aircraft M20C, M20E, M20F1993-09-16current
LP Aero Plastics INCRight Front Cabin Door Window 136.250Mooney 340121-011 (Green tint)Mooney Aircraft M20C, M20D, M20E1993-09-16current
National Aircraft Service INCCabin Door Seal Dwg NADS01Beech ADP1069Mitsubishi MU-2B, MU-2B-10, -151993-09-07current
Hartzog Aviation INCCabin Door Handle Assembly Dwg AS-000006 Dwg 24Modification PartBeech Raytheon) (200, B200, 3001992-11-30current
Aero Cables CorporationLower Cabin Door Support Cables 51-00-Cessna 340A, 402C, 4041985-04-22current
Aero Cables CorporationLower Cabin Door Support Cables 32-75-Cessna 340A, 402C, 4041985-04-22current
Aero Cables CorporationLower Cabin Door Support Cables 31-25-Cessna 340A, 402C, 4041985-04-22current
Aero Cables CorporationLower Cabin Door Support Cables 49-75-Cessna 340A, 402C, 4041985-04-22current

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.