Item 4.01. Changes in Registrant's Certifying Accountant.

On December 26, 2019, Mesa Air Group, Inc. (the "Company"), upon the approval of the Audit Committee (the "Committee") of the Board of Directors of the Company, notified Deloitte & Touche, LLP ("Deloitte"), the Company's current independent registered public accounting firm, that it would be dismissed from that position effective upon the completion of Deloitte's audits of the Company's consolidated financial statements for the fiscal year ending September 30, 2019, and the issuance of their report thereon. The decision to dismiss Deloitte was made as part of a competitive bidding process to determine the Company's independent registered public accounting firm for the fiscal year ending September 30, 2020.

The audit reports of Deloitte on the Company's consolidated financial statements as of and for the years ended September 30, 2019 and 2018 did not contain any adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope or accounting principles. During the Company's two most recent fiscal years ended September 30, 2019 and 2018, there were no (1) disagreements with Deloitte on any matter of accounting principles or practices, financial statement disclosures, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of Deloitte, would have caused Deloitte to make reference to the subject matter of the disagreements in connection with its reports; and (2) events of the type listed in paragraphs (A) through (D) of Item 304(a)(1)(v) of Regulation S-K.

The Company provided Deloitte with a copy of this Current Report on Form 8-K prior to its filing with the Securities and Exchange Commission ("SEC") and requested that Deloitte furnish the Company with a letter addressed to the SEC stating whether or not Deloitte agrees with the above statements. The letter from Deloitte is filed with this Current Report on Form 8-K as exhibit 16.1.

On December 26, 2019 the Committee appointed Ernst & Young LLP ("EY") as the Company's independent registered public accounting firm for the Company's fiscal year ending September 30, 2020.

During the Company's two most recent fiscal years ended September, 2019 and 2018, neither the Company nor anyone acting on its behalf consulted with EY regarding either: (i) the application of accounting principles to a specified transaction, either completed or proposed; or the type of audit opinion that might be rendered on the Company's financial statements, and neither a written report nor oral advice was provided to the Company that EY concluded was an important factor considered by the Company in reaching a decision as to the accounting, auditing or financial reporting issue; or (ii) any matter that was either the subject of a disagreement (as defined in paragraph (a)(1)(iv) of Item 304 of Regulation S-K and the related instructions thereto) or a reportable event (as described in paragraph (a)(1)(v) of Item 304 of Regulation S-K).

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

The following exhibit is furnished herewith.





             Exhibit Number   Description

             16.1               Letter from Deloitte & Touche LLP

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