UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 16, 2018

Willis Lease Finance Corporation

(Exact Name of Registrant as Specified in its Charter)

773 San Marin Drive, Suite 2215

Novato, California 94998

(Address of Principal Executive Offices) (Zip Code)

Registrant’s telephone number, including area code: (415) 408-4700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 1.01. Entry into a Material Definitive Agreement

On August 16, 2018, Willis Lease Finance Corporation (the “Company”) and Willis Engine Structured Trust IV, a Delaware statutory trust of which the Company is the sole beneficiary (“WEST IV”), entered into a note purchase agreement dated August 16, 2018 (the “Note Purchase Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated, MUFG Securities Americas Inc. and Wells Fargo Securities, LLC (collectively, the “Initial Purchasers”). The Note Purchase Agreement provides for the issuance and sale of $326.8 million aggregate principal amount of WEST IV’s Series A 2018-A Fixed Rate Notes and $46.7 million aggregate principal amount of Series B 2018-A Fixed Rate Notes (collectively, the “Notes”) to the Initial Purchasers. The Initial Purchasers are expected to resell the Notes pursuant to Rule 144A and Regulation S of the Securities Act of 1933. The Notes will be secured by (among other things) WEST IV’s direct and indirect ownership interests in a portfolio of 55 aircraft engines and one airframe. The Note Purchase Agreement contains customary representations, warranties, covenants and closing conditions for a transaction of this type. The Note Purchase Agreement also contains provisions pursuant to which the Company and WEST IV agree to hold harmless and indemnify the Initial Purchasers against damages under certain circumstances, which are customary for a transaction of this type.

The issuance and sale of the Notes are part of an offering, which, subject to satisfaction of a variety of customary conditions precedent, is scheduled to close on August 22, 2018. The Company can give no assurance that the transaction will close on that date or at all.

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Item 8.01 Other Events

On August 16, 2018, the Company issued a news release in connection with the matters described under Item 1.01 above. A copy of the news release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

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Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

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