The United Air Lines Certificate Management Office (CMO) has certificate management oversight responsibility for the United Air Lines Air Carrier Certificate and the United Air Lines Repair Station. This includes both domestic and international flight and maintenance operations. To support the oversight activities of the agency, management responsibilities have been divided between four field offices:
  • Chicago CMO
  • Denver CMO
  • Houston CMO
  • San Francisco CMO

Chicago CMO

The Chicago CMO is collocated at the Great Lakes Regional office in Des Plaines, IL. Inspector Jack Grossman manages the United Air Lines CMO and operates out of the Denver office. Inspector Hugh Thomas, the Supervisory Principal Operations Inspector (POI), is based in Chicago and is the primary point of contact on issues dealing with United Air Lines flight operations. Inspector Clement Corpus, the Supervisory Principal Avionics Inspector (PAI), and Inspector James Brannon, the Supervisory Principal Maintenance Inspector (PMI), are based in Chicago and they are the primary points of contact for issues involving United Air Lines maintenance.

Denver CMO

The Denver CMO has responsibility for overseeing flight operations of the United certificate, including aircrew training and flight operations worldwide.

Houston CMO

Along with the Denver CMO, the Houston CMO has responsibility for overseeing flight operations of the United certificate. In addition, together with the San Francisco CMO, the Houston CMO has responsibility for overseeing United's worldwide maintenance program, including the United Air Lines Repair Station.

San Francisco CMO

Along with the Houston CMO, the San Francisco CMO has responsibility for overseeing United’s worldwide maintenance program and the United Air Lines Repair Station.

Contacts for United Air Lines Maintenance and Operations

Direct all inquires about United Air Lines maintenance and flight operations programs to the appropriate principal inspector in the offices listed above.

Other Contacts

For calls or complaints related to:

  • customer service
  • customer relations
  • lost baggage
  • non-safety related areas of United’s operations

Contacts:
U.S. Department of Transportation (DOT)
Consumer Affairs Division Room 10405
400 7th Street, S.W.
Washington, DC 20590

Phone: (202) 366-2220