BEFORE THE
DEPARTMENT OF TRANSPORTATION WASHINGTON, D.C.

Ninety Day Notice of

MESABA AVIATION, INC. and PINNACLE AIRLINES, INC.

of termination of service at Watertown, SD

Pursuant to 14 C.F.R. Part 323 Docket OST-2001-10644

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 Watertown, SD

Pursuant to 14 C.F.R. Part 323 Docket OST-2001-10644

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 Watertown, SD, effective October 13, 2011.

Mesaba and/or Pinnacle provide service to the community, operating on a feefor-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.

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, someNinety Day Notice Page 

### 2

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 Watertown, 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:

Watertown (ATY)

Marketing

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

DL XJ MSP ATY 2551 SF3 1130 1254 1234567

DL XJ MSP ATY 2557 SF3 1935 2053 1234567

Marketing

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

DL XJ ATY MSP 2548 SF3 0645 0758 1234567

DL XJ ATY MSP 2551 SF3 1314 1425 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 Gary Williams Mayor City of Watertown
23 Second Street NE Watertown, SD 57201

Mr. Erick Dahl Airport Director Watertown Regional Airport 2416 Boeing Avenue Watertown, SD 57201

South Dakota Department of Transportation
Bruce Lindholm Local Transportation Program Manager Division of Finance and Management 700 E. Broadway Ave. Becker-Hansen Building Pierre, SD 57501

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

_______________________ Maximillian T. Shemesh