The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 22

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00543AT	Status: Current	App Date: 03/17/1994	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights(Maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs.) (DC-8-51 s/n 45855 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00543AT	Status: Historical	App Date:	Rev Date: 07/20/1994
Description: Increase in aircraft operating weights(Maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs.) (DC-8-51 s/n 45855 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00558AT	Status: Current	App Date: 03/17/1994	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights (Maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs.) (DC-8-51 s/n 45410 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00558AT	Status: Historical	App Date:	Rev Date: 03/20/1998
Description: Increase in aircraft operating weights (Maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs.) (DC-8-51 s/n 45410 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00573AT	Status: Historical	App Date:	Rev Date: 03/20/1998
Description: Increase in aircraft operating weights (Maximum Takeoff Weight--315,000 lbs., Maximum Landing Weight--217,000 lbs., Maximum Zero Fuel Weight--203,000 lbs.) (DC-8-51 S/N 45855)
TC Nos.: 4A25, A21EA
Models: Bombardier Inc.CL-600-2B19 (Regional Jet Series 100) McDonnell Douglas CorporationDC-8-51
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00617AT	Status: Historical	App Date:	Rev Date: 03/20/1998
Description: Increase in aircraft operating weights(maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs. (DC-8-51 s/n 45935 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00617AT	Status: Current	App Date: 12/14/1994	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights(maximum takeoff weight - 315,000 lbs., maximum landing weight - 217,000 lbs., maximum zero fuel weight - 203,000 lbs. (DC-8-51 s/n 45935 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00794AT	Status: Current	App Date: 12/01/2009	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights(max takeoff weight - 328,000 lbs., max landing weight - 258,000 lbs., max zero fuel weiht - 245,000 lbs.) (DC-8-71 SN 46099 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-71
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00794AT	Status: Historical	App Date:	Rev Date: 04/24/1997
Description: Increase in aircraft operating weights(max takeoff weight - 328,000 lbs., max landing weight - 258,000 lbs., max zero fuel weiht - 245,000 lbs.) (DC-8-71 SN 46099 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-71
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 9010 Huntcliff Trace, Atlanta, GA 30350-1734, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00845AT	Status: Historical	App Date:	Rev Date: 04/03/2002
Description: Increase in aircraft operating weights.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 9010 Huntcliff Trace, Atlanta, GA 30350-1734, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00845AT	Status: Current	App Date: 03/31/1995	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 9010 Huntcliff Trace, Atlanta, GA 30350-1734, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00845AT	Status: Historical	App Date: 03/31/1995	Rev Date: 04/21/2003
Description: Increase in aircraft operating weights.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00850AT	Status: Historical	App Date:	Rev Date: 09/17/1996
Description: Increase in aircraft operating weights as substantiated by the design data. (DC-8F-54 S/Ns 45802, 45886, 46012 only))
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8F-54
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00850AT	Status: Current	App Date: 12/06/1994	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights as substantiated by the design data. (DC-8F-54 S/Ns 45802, 45886, 46012 only))
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8F-54
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00924AT	Status: Current	App Date: 09/21/1994	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights(maximum landing weight - 240,000 lbs., maximum zero fuel weight - 224,000 lbs.) (DC-8F-54 S/N 45637)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8F-54
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00924AT	Status: Historical	App Date:	Rev Date: 12/04/1995
Description: Increase in aircraft operating weights(maximum landing weight - 240,000 lbs., maximum zero fuel weight - 224,000 lbs.) (DC-8F-54 S/N 45637)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8F-54
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01170AT	Status: Current	App Date: 03/17/1994	Rev Date: 12/01/2009
Description: ONE ONLY STC, SN 45685: Increase in aircraft operating weights.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01170AT	Status: Historical	App Date:	Rev Date: 03/20/1998
Description: Increase in aircraft operating weights. (DC-8-51 45685)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-51
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01363AT	Status: Historical	App Date:	Rev Date: 12/15/1998
Description: Increase in aircraft operating weights (max landing weight - 250,000 lbs., max takeoff weight - 342,000 lbs., Max zero fuel wieth - 230,000 lbs.) (DC-8-62 s/n 45925 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 8960 Ridgemond Drive, Atlanta, GA 30350, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01363AT	Status: Current	App Date: 09/18/1995	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights (max landing weight - 250,000 lbs., max takeoff weight - 342,000 lbs., Max zero fuel wieth - 230,000 lbs.) (DC-8-62 s/n 45925 only)
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62
ACO: AIR-750: East Certification Branch ATL

STC Holder: Aircraft Modification Design Services 9010 Huntcliff Trace, Atlanta, GA 30350-1734, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02032AT	Status: Historical	App Date:	Rev Date: 11/15/1999
Description: Increase in aircraft operating weights (Maximum landing weight to 265000 lbs and maximum zero fuel weight to 241500 lbs).
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62F
ACO: Atlanta ACO Branch, Tel: +1 (404) 474-5500

STC Holder: Aircraft Modification Design Services 9010 Huntcliff Trace, Atlanta, GA 30350-1734, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02032AT	Status: Current	App Date: 09/18/1995	Rev Date: 12/01/2009
Description: Increase in aircraft operating weights (Maximum landing weight to 265000 lbs and maximum zero fuel weight to 241500 lbs).
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-62F
ACO: AIR-750: East Certification Branch ATL