BEFORE THE DEPARTMENT OF TRANSPORTATION WASHINGTON, D.C.

Ninety Day Notice of

MESABA AVIATION, INC. and PINNACLE AIRLINES, INC.

of termination of service at Devils Lake, ND and Jamestown, ND

Pursuant to 14 C.F.R. Part 323 Docket OST-1997-2785

NINETY-DAY NOTICE OF TERMINATION OF SERVICE

Communications with respect to this document should be addressed to:

Megan Rae Rosia Vice President, Government Affairs PINNACLE AIRLINES CORP. 1689 Nonconnah Blvd., Suite 111 Memphis, TN 38132 (202) 965-4889 mrosia@pncl.com Maximillian T. Shemesh General Counsel MESABA AIRLINES, INC. 1000 Blue Gentian Road, Suite 200 Eagan, MN 55121 (651) 637-5218 Max.Shemesh@mesaba.com

Dated: July 15, 2011

Note: Objections to this Notice are due on August 4, 2011.BEFORE THE DEPARTMENT OF TRANSPORTATION WASHINGTON, D.C.

Ninety Day Notice of

MESABA AVIATION, INC. and PINNACLE AIRLINES, INC.

of termination of service at Devils Lake, ND and Jamestown, ND

Pursuant to 14 C.F.R. Part 323 Docket OST-1997-2785

NINETY-DAY NOTICE OF TERMINATION OF SERVICE

Pursuant to Part 323 of the Department of Transportation’s Regulations (14

C.F.R. Part 323), Mesaba Aviation, Inc. (“Mesaba”), and Pinnacle Airlines, Inc.

(“Pinnacle”), each a certificated carrier, hereby give notice of intent to discontinue the

current service provided at Devils Lake, ND and Jamestown, ND, effective October 13,

2011.

Mesaba and/or Pinnacle provide service to these communities, operating on a

fee-for-service basis as “Delta Connection” carriers. Delta has notified Mesaba and

Pinnacle that Delta can no longer economically continue this service. Delta is in the

process of retiring all turboprop and numerous small jet aircraft operated by Mesaba and

Pinnacle. All of the Saab 340 aircraft operated by Mesaba for Delta Connection will be

retired by year end. Delta has notified Mesaba and Pinnacle that high fuel costs and low

passenger demand further necessitate the filing of this notice.Ninety Day Notice Page 

### 2

Mesaba and Pinnacle are commonly owned by Pinnacle Airlines Corp. The

carriers are jointly filing this notice because, as Mesaba’s Saab aircraft are retired, some

markets may need to be back-filled by Pinnacle-operated regional jets until a

replacement carrier is selected. With the Department’s permission, Pinnacle is currently

providing substitute service in select Mesaba EAS markets. This notice is intended to

cover all Pinnacle/Mesaba service at Devils Lake and Jamestown, regardless of which

carrier may be providing service during the transition period. In the event the

Department requires a hold-in, the carriers request that Mesaba and/or Pinnacle be

authorized to provide the service, and that the Department set reasonable and fully

compensatory rates based on the use of CRJ aircraft, which are the only aircraft

available to provide continued service.

The discontinuation of service will c ause service to drop below the EAS

guarantee levels established by the Department. Mesaba and/or Pinnacle is the only

carrier providing service. Complete schedules including routes, arrival and departure

times, equipment types, and operating carrier(s) are as follows:

Devils Lake (DVL) and Jamestown (JMS)

Marketing

Airline Operating
Airline Org Dst Flight Equip Departure
Time Arrival
Time Op days

DL XJ MSP JMS 2527 SF3 1135 1320 1234567

DL XJ JMS DVL 2527 SF3 1335 1412 1234567

DL XJ DVL MSP 2527 SF3 1437 1616 1234567

DL XJ MSP JMS 2646 SF3 1930 2104 1234567

DL XJ JMS DVL 2646 SF3 2119 2154 1234567

DL XJ DVL JMS 2621 SF3 0545 0628 1234567

DL XJ JMS MSP 2621 SF3 0643 0813 1234567Ninety Day Notice Page 

### 3

Respectfully Submitted,

____________________________ Megan Rae Rosia Vice President, Government Affairs Pinnacle Airlines Corp. _______________________ Maximillian T. Shemesh General Counsel Mesaba Airlines, Inc.CERTIFICATE OF SERVICE

I hereby certify that a copy of the foregoing Ninety-Day Notice of Termination of Service has been served this 15 th day of July, 2011, upon the following persons via
certified mail:

The Honorable Richard Johnson Mayor Devils Lake City Hall 107 19th Street NE Devils Lake, ND 58301

Mr. John Nord Airport Manager Devils Lake Regional Airport 106 National Guard Street NW Devils Lake, ND 58301

The Honorable Katie Andersen Mayor Jamestown City Hall 102 Third Avenue Southeast Jamestown, ND 58401

Mr. Matthew Leitner Airport Manager Jamestown Regional Airport P.O. Box 1560 Jamestown, ND 58401

North Dakota Aeronautics Commission Larry Taborsky, Director PO Box 5020 Bismarck, ND 58502-5020

U.S. Postal Service 475 L’Enfant Plaza S.W. Washington, D.C. 20260 ATTN: Assistant General Counsel – Transportation

_______________________ Maximillian T. Shemesh