The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

United Airlines INC

Holds 520 approved modifications, most of them for the Boeing 747. FAA spelling: United Airlines Inc.

Approved modifications 520 · newest first

2022-06-10ST09822DS · Interior Reconfiguration · 767-300 Series
2019-06-30ST09823DS · Interior Reconfiguration · 767-300 Series
2019-01-29ST09817DS · Interior Reconfiguration · 777-200 Series
2018-12-10ST09819DS · 777-222 GLSSU and ADS-B Out (DO-260B) Installation · 777-200 Series
2018-11-13ST09825DS · 787-10 Red Text Exit Sign Installation · 787-10
2018-08-17ST09821DS · 777-300ER Interior Reconfiguration · 777-300ER Series
2018-07-05ST09816DS · 757-33N ELS/EHS/ADS-B Out (DO-260B) Installation · 757-300 Series
2018-07-02ST09776AC · 737-800 Slimline Lavatory and Economy Class Seat Modification (HIC Compliant) · 737-800 Series
2018-04-13ST09820DS · Aft Cargo Rack and Shroud Installation · A320-111, A320-211, A320-212
2018-04-04ST09814DS · 757-222 ELS/EHS/ADS-B Out (DO-260B) Installation · 757-222
2018-02-17ST09811DS · 757-300 Interior Reconfiguration · 757-300 Series
2017-10-26ST09804AC · A319/A320 First Class Seat and In-Seat Power System Installation · A319-131
2017-10-26ST09809AC · A319 Aft Cargo Rack and Shroud Installation · A319-111, A319-112, A319-113
2017-10-26ST09802AC · 767-400 ADS-B Out Installation · 767-400ER Series
2017-10-26ST09807AC · B767-300 ADS-B Out DO-260B Strapping Provisions Installation · 767-300 Series
2017-10-26ST09808AC · A319 Interior Reconfiguration and In-Seat Power System Installation · A319-132, A319-133
2017-10-24ST09738AC · 737-800 GBO Seat Modification · 737-800 Series
2017-10-24ST09801AC · 757-300 In-Seat Power System (ISPS) Installation · 757-300 Series
2017-10-24ST09778AC · 787-9 Push to Talk Switch Replacement · 787-9
2017-10-24ST09800AC · 777-200 Series Aircraft - KID PED Power Installation Utilizing the Armstrong Aerospace Powerbar · 777-200 Series
2017-10-24ST09737AC · 737-700 GBO Seat Modification · 737-700 Series
2017-10-24ST09779AC · 787-9 Red Text Exit Sign Installation · 787-9
2017-10-11ST09810AC · 767-300 Interior Reconfiguration · 767-300 Series
2017-08-05ST09739AC · 737-800 MCL Slimline Lavatory and Economy Class Seat Modification (HIC Exempt) · 737-800 Series
2017-08-05ST09736AC · 737-900/900ER Slimline Lavatory and Economy Class Seat Modification (HIC Exempt) · 737-900 Series, 737-900ER Series
2017-08-05ST09735AC · 737-800 Slimline Lavatory and Economy Class Seat Modification · 737-800 Series
2017-08-05ST09805AC · 737-800 GBO Slimline Lavatory and Economy Class Seats (Non-HIC Compliant) · 737-800 Series
2017-08-05ST09777AC · 737-900/900ER Slimline Lavatory and Economy Class Seat Modification (HIC Compliant) · 737-900 Series, 737-900ER Series
2017-08-05ST09812AC · 737-700 Interior Reconfiguration · 737-700 Series
2017-07-24ST09803AC · B767-300 Interior Reconfiguration · 767-300 Series
2017-07-15ST09731AC · B757-300 B/E Spectrum Front Row Seat Replacement · 757-300 Series
2017-07-12ST09733AC · 757-200 ADS-B Out Installation · 757-200 Series
2017-07-08ST09729AC · 777-200 32F/89Y+/223Y Interior Reconfiguration · 777-200 Series
2017-07-08ST09728AC · KID Seat Power Installation Utilizing the Armstrong Aerospace Powerbar Onboard Boeing 747-400 Aircraft · 747-400 Series
2017-07-08ST09730AC · Interior Reconfiguration on GBO B767-400ER to BusinessFirst Flat Bed Seats and AVOD Installation · 767-400ER Series
2017-07-03ST09732AC · Interior Reconfiguration and New Economy Seat Installation · A319-131
2017-07-03ST09726AC · 737-700 GBO Reconfiguration 12/112 to 12/106 · 737-700 Series
2017-07-03ST09724AC · Interior Reconfiguration and New Economy Seat Installation · A320-232
2017-07-03ST09720AC · 737-900/900ER Reconfiguration 20/153 to 20/147 · 737-900 Series, 737-900ER Series
2017-07-02ST09716AC · Reconfiguration from 16F/144Y to 16F/138Y · 737-800 Series
2017-07-02ST09714AC · B787-8 Push to Talk Switch Installation · 787-8
2017-06-02ST09686AC · 737-800 Mid Cabin Lavatory Reconfiguration · 737-800 Series
2015-05-13ST09709AC · 737-700 Reconfiguration 12/112 to 12/106 · 737-700 Series
2013-03-26ST09730AC-D · Interior Reconfiguration on GBO B767-400ER to BusinessFirst Flat Bed Seats and AVOD Installation · 767-400ER Series
2012-10-03ST09723AC · B787-8 Red Text Exit Sign Installation · 787-8
2012-09-10ST09722AC · B737-700/800/900 ELS/EHS/ADSB-Out Installation · 737-700 Series, 737-800 Series, 737-900 Series
2012-08-28ST09721AC · 757-300 Reconfiguration 24/192 to 24/189 · 757-300 Series
2012-08-21ST09703AC · B757-300 In-Seat Power & LiveTV Provisioning for Koito First / Tourist Class Seats · 757-300 Series
2012-07-02ST02339LA · The alteration replaces the existing Cockpit Voice Recorder (CVR) with a Honeywell Two-Hour CVR · 777-200 Series
2012-06-20ST09715AC-D · Channel 9 ATC Communications Via IFE Installation · 777-200 Series
2012-06-20ST09713AC-D · Interior Reconfiguration · 777-200 Series
2012-06-07ST09707AC-D · B767-300 Interior Reconfiguration · 767-300 Series
2012-05-23ST02334LA · The alteration replaces the existing Cockpit Voice Recorder (CVR) with a Honeywell Two-Hour CVR · 747-400 Series
2012-05-23ST00021LB-D · The installation of Rumbold F/C Seats, BE Aerospace - SPG C/C seats, Recaro Y.C Seats, BE20000M Distributed Video,... · 747-400 Series
2012-05-17ST09711AC-D · 757-300 Reconfiguration 24/192 to 24/189 · 757-300 Series
2012-05-04ST09708AC-D · 737-500 Reconfiguration 8/106 to 8/100 · 737-500 Series
2012-05-03ST09709AC-D · 737-700 Reconfiguration 12/112 to 12/106 · 737-700 Series
2011-11-30ST02344LA · The alteration replaces the existing Cockpit Voice Recorder (CVR) with a Honeywell Two-Hour CVR · 747-400 Series
2011-11-30SA3040WE-D · Installation of cabin new look, cabin refurbishment, in-flight entertainment installation, passenger seat... · DC-8-61
2011-11-30SA4-1363 · Interior configurations as described on United Air Lines Approved Master Drawing List No. COA 20-25-20 Sheets No. 1... · DC-8-12, DC-8-21, DC-8-51

The first 60 of 520.

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.