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No. of STCs: 49

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00364LA	Status: Historical	App Date:	Rev Date: 04/28/1997
Description: Retirement life extension of wing.
TC Nos.: A9EA
Models: Bombardier-Rotax GmbHDHC-6-300
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00364LA	Status: Current	App Date: 01/25/1994	Rev Date: 12/29/2003
Description: Retirement life extension of de Havilland DHC-6-300 wing in accordance with FAA approved Structural Integrity Engineering Master Drawing List SIE-23-900, Revision B, dated April 7, 1997, or later FAA approved revision.
TC Nos.: A9EA
Models: Bombardier Inc.DHC-6-300
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5510NM	Status: Current	App Date: 01/22/1990	Rev Date: 12/29/2003
Description: Modification in accordance with FAA approved SIE Drawing List 9000 N/C,, dated August 7, 1991, or later FAA approved revisions, to permit an increased maximum zero fuel weight (MZFW), and maximum landing weight (MLW) of DC-8-61 airplanes.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-61
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5510NM	Status: Historical	App Date:	Rev Date: 09/07/2000
Description: Modification to permit an increased maximum zero fuel weight (MZFW), and maximum landing weight (MLW).
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-61
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA6073NM	Status: Historical	App Date: 09/01/1992	Rev Date: 12/30/1993
Description: Installation of fatigue sensor and structural life extension of wing spar.
TC Nos.: A14CE
Models: Raytheon Aircraft Company99, 99A, 99A(FACH), A99A, B99, C99
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA6073NM	Status: Current	App Date: 09/01/1992	Rev Date: 12/29/2003
Description: Installation of fatigue sensor and structural life extension of wing spar in accordance with FAA approved SIE Master Drawing List 91000, Revision A, dated September 23, 1993, or later FAA approved revision, and FAA approved Airplane Flight Manual Supplement Report No. SIE-12-601, Revision N/C, dated October 19, 1993 or later FAA approved Airplane Flight Manual Supplement, and Report No. SIE-12-602, Revision N/C, dated December 21, 1993, or later FAA approved Revision. (SIE-12-601 is for model C99 only, and SIE-12-602 is for the remaining models, 99, 99A, A99A, and B99.)
TC Nos.: A14CE
Models: Raytheon Aircraft Company99, 99A, A99A, B99, C99
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST001043AT	Status: Current	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List No. SIE-28-703, Revision A. (727-200 SERIES 20637 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00633AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of maximum zero fuel weight increase from 138,000 pounds to 146,000 pounds. (727-200 SERIES S/N 19483, 19484, 19486, 19491, 20180, 20184, 20185, 20187, 20995, 20996, 19480, 19492, 19481, 19482, 19485, 20191 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00633AT	Status: Current	App Date: 12/09/1994	Rev Date: 12/29/2003
Description: Approval of maximum zero fuel weight increase from 138,000 pounds to 146,000 pounds. (727-200 SERIES S/N 19483, 19484, 19486, 19491, 20180, 20184, 20185, 20187, 20995, 20996, 19480, 19492, 19481, 19482, 19485, 20191 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00671AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of maximum landing weight increase from 160,000 pounds to 164,000 pounds. (727-200 SERIES S/N 21930 AND 21931 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00671AT	Status: Current	App Date: 01/11/1995	Rev Date: 12/29/2003
Description: Approval of maximum landing weight increase from 160,000 pounds to 164,000 pounds. (727-200 SERIES S/N 21930 AND 21931 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00719AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00719AT	Status: Current	App Date: 03/01/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in Structural Integrity Engineering (SIE) Master Report List or Master Document List No. SIE-28-703, no revision, dated February 24, 1995, or later FAA approved revision. Aircraft with Increase of Maximum Takeoff or Landing Weight must also be modified in accordance with: Drawing SIE-28-901 (taxi weight up to 183,000 lb, landing weight to 164,000 lb), 28-904 (taxi weight up to 178, 500 lbs, landing weight to 164,000 lbs), 28-905 (taxi weight up to 191,000 lb, landing weight to 164,000 lbs), Rev NC or later FAA approved revisions.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00720AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of maximum zero fuel weight and maximum landing weight (Flaps 30) increases to 157,500 pounds and 166,000 pounds, respectively. (727-200 SERIES S/N 22080 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00720AT	Status: Current	App Date: 01/11/1995	Rev Date: 12/29/2003
Description: Approval of maximum zero fuel weight and maximum landing weight (Flaps 30) increases to 157,500 pounds and 166,000 pounds, respectively. (727-200 SERIES S/N 22080 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00770LA	Status: Historical	App Date: 07/08/1998	Rev Date: 12/29/2003
Description: Increased aircraft main deck cargo floor capacity between Fuselage Stations 740 to 950 in accordance with approved Master Reports List SIE 37-702, Revision N/C, dated February 23, 1999, or later FAA approved revisions. Structural Integrity Engineering FAA Approved Airplane Flight Manual Supplement, SIE 37-605 dated May 1, 1999, or later FAA approved revisions and Weight and Balance Supplement, SIE 37-606, dated February3, 1999, or later FAA approved revisions, are required as part of this modification.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00770LA	Status: Current	App Date: 07/08/1998	Rev Date: 05/11/2004
Description: Increased aircraft main deck cargo floor capacity between Fuselage Stations 740 to 950.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00770LA	Status: Historical	App Date:	Rev Date: 12/20/1999
Description: Increased aircraft main deck cargo floor capacity between Fuselage Stations 740 to 950.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00778LA	Status: Historical	App Date:	Rev Date: 12/20/1999
Description: Installation of splitter locks and floor modifications to increase the main deck cargo floor capacity.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00778LA	Status: Current	App Date: 02/18/1997	Rev Date: 12/29/2003
Description: Installation of splitter locks and floor modifications to increase the main deck cargo floor capacity.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00779LA	Status: Historical	App Date:	Rev Date: 12/20/1999
Description: Installation of side vertical restraints.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00779LA	Status: Current	App Date: 12/10/1998	Rev Date: 12/29/2003
Description: Installation of side vertical restraints in accordance with approved Master Drawing List SIE 37-703, Revision A, dated May 25, 1999, or later FAA approved revisions. Structural Integrity Engineering FAA Approved Airplane Flight Manual Supplement, SIE 37-607 dated May 26, 1999, or later FAA approved revisions and Weight and Balance Supplement, SIE 37-608, dated February 9, 1999, or later FAA approved revisions, are required as part of this modification.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00782AT	Status: Current	App Date: 05/23/1995	Rev Date: 12/29/2003
Description: Approval of maximum zero fuel weight increase to 132,000 pounds. (727-100 SERIES S/N 19183 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-100 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00782AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of maximum zero fuel weight increase to 132,000 pounds. (727-100 SERIES S/N 19183 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-100 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00795AT	Status: Historical	App Date: 05/10/1995	Rev Date: 12/29/2003
Description: Approval of maximum zero fuel weight increase (155,000 lbs.) and maximum landing weight increase(164,000 lbs.). (727-200 SERIES S/N 20938 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00795AT	Status: Historical	App Date:	Rev Date: 04/29/1999
Description: Approval of maximum zero fuel weight increase (155,000 lbs.) and maximum landing weight increase(164,000 lbs.). (727-200 SERIES S/N 20938 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00795AT	Status: Current	App Date: 05/10/1995	Rev Date: 01/20/2005
Description: Approval of maximum zero fuel weight increase (155,000 lbs.) and maximum landing weight increase(164,000 lbs.). Data pertaining to this modification are considered inadequate for duplication in other aircraft.This approval is limited to the installation in the Boeing 727-200, (Serial Number 20938 only).
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00901AT	Status: Current	App Date: 05/12/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in SIE-28-902. (727-200 S/N 21269, 21245 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00901AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE-28-902. (727-200 S/N 21269, 21245 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00925AT	Status: Historical	App Date:	Rev Date: 08/03/1999
Description: Approval of increased operating weights as substantiated by the design data listed in SIE No. SIE-28-707. (727-200 SERIES -200 S/N'S 21157, 21158, 22476, 22549 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00925AT	Status: Historical	App Date: 05/12/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in Structural Integrity Engineering (SIE) Master Report List No. SIE-28-707, no revision, dated August 28, 1995, and modified in accordance with Drawing SIE-28-902, no revision, dated September 7, 1995, or later FAA approved revisions.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00925AT	Status: Current	App Date: 05/12/1995	Rev Date: 03/28/2007
Description: Approval of increased operating weights as substantiated by the design data listed in Structural Integrity Engineering (SIE) Master Report List No. SIE-28-707, no revision, dated August 28, 1995, and modified.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00926AT	Status: Current	App Date: 10/24/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in SIE No. SIE-28-713. (727-200 S/N'S 21085, 20997 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00926AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE No. SIE-28-713. (727-200 S/N'S 21085, 20997 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00939AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE 28-706, Revision A.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00939AT	Status: Historical	App Date: 06/19/1995	Rev Date: 01/20/2005
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE 28-706, Revision A.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00939AT	Status: Current	App Date: 06/19/1995	Rev Date: 08/25/2017
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE 28-706, Revision A.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00939AT	Status: Historical	App Date: 06/19/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE 28-706, Revision A.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00949AT	Status: Current	App Date: 12/11/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE-28-717. (727-200 SERIES S/N 21161 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00949AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE Master Report List SIE-28-717. (727-200 SERIES S/N 21161 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01013AT	Status: Historical	App Date:	Rev Date: 02/25/1998
Description: Approval of increased operating weights as substantiated by the design data listed in SIE report SIE-33-701. (727-200 SERIES S/N'S 21327, 21328, 21329, 21330, 21331 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01013AT	Status: Current	App Date: 11/30/1995	Rev Date: 12/29/2003
Description: Approval of increased operating weights. Limited to installation on serial numbers 21327, 21328, 21329, 21330, and 21331 ONLY.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01043AT	Status: Historical	App Date: 01/10/1996	Rev Date: 12/29/2003
Description: Approval of increased operating weights as substantiated by the design data listed in Structural Integrity Engineering (SIE) Master Document List No. SIE-28-703, Revision A, dated January 11, 1996, and modified in accordance with Drawing SIE-28-905, (No Rev.), dated January 11, 1996, or later FAA approved revision.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9560 Topanga Canyon Blvd, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01043AT	Status: Historical	App Date:	Rev Date: 04/30/1998
Description: Approval of increased operating weights as substantiated by design data listed in SIE master reports. (727-200 SERIES 20637 ONLY)
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01043AT	Status: Current	App Date: 01/10/1996	Rev Date: 01/20/2005
Description: Approval of increased operating weights.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9509 Vassar Ave., Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01181LA	Status: Historical	App Date:	Rev Date: 07/16/2001
Description: Installation of modifications to the 9-G rigid barrier, cargo door surround structure and other attendant modifications.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-55, DC-8-60 Series, DC-8-61, DC-8-62, DC-8-63, DC-8-71, DC-8-73
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01181LA	Status: Current	App Date: 04/07/2000	Rev Date: 12/29/2003
Description: Installation of modifications to the 9-G rigid barrier, cargo door surround structure and other attendant modifications.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-55, DC-8-61, DC-8-62, DC-8-63, DC-8-71, DC-8-73
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Avenue, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01861LA	Status: Current	App Date: 04/27/2005	Rev Date: 01/31/2006
Description: Modifications to the 9-G rigid barrier, cargo door surround structure and other attendant modifications.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-63, DC-8-73
ACO: AIR-770: West Certification Branch LA

STC Holder: Structural Integrity Engineering 9525 Vassar Ave, Chatsworth, CA 91311		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02793LA	Status: Current	App Date: 06/12/2020	Rev Date: 09/30/2022
Description: Modification of Boeing 747-400F Airplane Weight and Balance Manual to allow transportation of the Virgin Orbit LauncherOne Unit Load Devices, ULD's.
TC Nos.: A20WE
Models: The Boeing Company747-400F Series
ACO: AIR-770: West Certification Branch LA