Skip to content

Aircraft STC directory

McDonnell Douglas DC-9-51 STCs

The Jun 30, 2026 FAA DRS snapshot contains 73 selected supplemental type certificates with status Current whose public applicability data names the McDonnell Douglas DC-9-51. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

73
listed Current at snapshot
33
holder directories
10
modification categories
Jul 18, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications34
Avionics10
Safety and emergency equipment7
Aircraft structures6
Cabin and interiors6
Cargo and special mission4
Aircraft connectivity3
Aircraft performance1
Landing gear and brakes1
Engine and powerplant1

Recorded holders

Amphenol Cable and Interconnect Technologies Inc.7Airborne Maintenance & Engineering Services (AMES)7B/E Aerospace7ABX Air Incorporated5Honeywell International Inc3Safran Cabin Inc.2American Airlines Inc2AIM Aviation Inc2Jetaire Aerospace LLC2Avionics Group Inc.2ACSS (Aviation Communication and Surveillance Syst2JanzAir Consulting Services2Rockwell Collins Inc2Acron Aviation Inc.1Purolator Facet, Inc1BF Goodrich Aerospace1Teledyne Controls1U.S. Technical Consultants Inc.1USA Jet Airlines Inc.1Canard Aerospace Corporation1

Recently revised DC-9-51 STCs

Showing the 73 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA3937NMOther aircraft modifications

Installation of Bell Industries Piston-Shoe Sub-assembly, Part No. 700001 as a replacement part for Sundstrand Part No. 728638, 700631, or SD1334 when used in Sundstrand Model No. 60AGD04 Constant Speed Drives (CSD). Part No. 700001 to be in accordance with Bell Industries Drawing No. 700001-A, -C, -D, -H, -J, and -L, Revision "A", dated December 17, 1984, or later FAA approved revisions. See continuation sheet.

FAA holder: California Precision Hydraulics Inc

View record