SECOND AMENDMENT TO AIRCRAFT PURCHASE AGREEMENT This SECOND AMENDMENT TO AIRCRAFT PURCHASE AGREEMENT (this "Second Amendment") is made and entered into as of the 7t° day of May, 2021 (the "Effective Date"), by and between Hyperion Air, LLC ("Seller") and Industrial Integrity Solutions, LLC ("Purchaser"), and amends that certain Aircraft Purchase Agreeement by and between Seller and Purchaser entered into as of April 16, 2021 (the "Original Agreement"), as the same was previously amended by that certain First Amendment to Aircraft Purchase Agreeement by and between Seller and Purchaser made and entered into as of April 20, 2021 (said Original Agreement, as so amended, the "Agreement"), governing the purchase and the sale of that certain 2008 Keystone Helicopter (Sikorsky) model S-76C++ aircraft, bearing manufacturer's serial number 760750, and currently registered with the United States Federal Aviation Administration as N722JE. All capitalized terms used but not otherwise defined herein shall have the meanings ascribed to those terms in the Agreement. WHEREAS, Section 4(a) of the Agreement provides in relevant part that ". . .in no event shall the Closing take place later than May 7, 2021 (the "Closing Date")"; WHEREAS, the Parties desire to extend the May 7, 2021 Closing deadline provided for in Section 4(a) until May 13, 2021, so that May 13, 2021 is the absolute final and latest date by which Purchaser must close under the Agreement; and WHEREAS, Seller is willing to extend the May 7, 2021 Closing deadline until May 13, 2021, effective when and on the condition that immediately upon execution of this Second Amendment Purchaser increases the Deposit by delivering to the Escrow Agent an additional One Hundred Thousand Dollars ($100,000), and provided further that Purchaser agrees herein that the full amount of the Deposit, as so increased, is non-refundable and immediately, absolutely, and unconditionally due and payable to Seller regardless of whether or not the Closing occurs, and immediately instructs Escrow Agent to disburse the Deposit, as so increased, to Seller in accordance with Seller's disbursement instructions; NOW, THEREFORE, in consideration of these premises and the mutual covenants and agreements herein contained, the parties agree as follows: 1. Subject to the provisions of Paragraph 2 of this Second Amendment and effective if and only if Purchaser fully complies with such provisions, Section 4(a) of the Agreement is hereby amended in its entirety to read as follows: (a) The closing of this transaction ("the Closing") and delivery of the Aircraft to Purchaser shall take place at Fort Lauderdale Executive Airport KFXE, Florida ("the Closing Place") by not later than the Closing Date (as hereinafter defined), EFTA00022955

unless the parties subsequently agree upon a later date in writing, in which case such agreed upon date shall be deemed the "Closing Date". The Closing shall take place promptly after: (i) Purchaser's delivery of the Certificate of Technical Acceptance indicating Purchaser's Unconditional Acceptance of the Aircraft in accordance with Sections 3(f) and (h) hereof; and (2) confirmation from the Escrow Agent that the Escrow Agent has received the Purchase Price Balance from Purchaser and all Escrow Documents (as defined below), but in no event shall the Closing take place later than May 13, 2021 (the "Closing Date"). Seller and Purchaser hereby acknowledge that the passing of title, possession and delivery of the Aircraft shall take place within the state in which the Closing Place is located. The fuel costs and the expenses of Seller's flight crew, if any, in flying the Aircraft from the Inspection Facility to the Closing Place shall be the sole responsibility of and paid for by Purchaser. 2. Immediately following Purchaser's and Seller's execution of this Second Amendment, Purchaser shall increase the amount of the Deposit by delivering an additional One Hundred Thousand Dollars ($100,000) to the Escrow Agent, whereupon the full amount of the Deposit, as so increased (i.e., Two Hundred Thousand Dollars ($200,000), hereinafter referred to as the "Increased Deposit"), shall be non-refundable and immediately, absolutely and unconditionally due and payable to Seller, regardless of whether or not a Closing shall thereafter occur. Concurrently with Purchaser's delivery of the additional amount of the Deposit to the Escrow Agent, Purchaser shall deliver to the Escrow Agent (and send a copy of the same to Seller) a signed written instruction directing the Escrow Agent to immediately disburse the Increased Deposit to Seller in accordance with Seller's disbursement directions, without any further writing or approval from Purchaser being required and without any requirement that a Closing occur. Wand only if Seller receives the full amount of the Increased Deposit in accordance with Seller's disbursement instructions, the amount of the Purchase Price Balance required to be paid by Purchaser under the Agreement shall decrease to One Million Six Hundred Thousand Dollars ($1,600,000). The provisions of Paragraph 1 of this Second Amendment will not be effective unless and until Seller receives the full amount of the Deposit in accordance with Seller's disbursement instructions. L-a-,v-oceste.. 3. In the event of any inconsistencies between the provisions of the Agreement and the provisions of this Second Amendment, the provisions of this Second Amendment shall control in all respects. Except as expressly amended hereby, the provisions of the Agreement shall remain unchanged, valid and in full force and effect. 4. This Second Amendment may be fully executed in separate counterparts by each of the parties hereto. Any signatures on this Second Amendment may be transmitted via facsimile or e-mail (in pdf format), which signatures shall be deemed originals for all purposes. [Signatures on the following page] 2 EFTA00022956

IN WITNESS WHEREOF, the parties hereto have executed this SECOND AMENDMENT TO AIRCRAFT PURCHASE AGREEMENT as of the day and year first written above. Seller: Hyperion Air, LLC By: --1 OMrtid, Print: Darren Indyke Title: Authorized Representative Purchaser: Industrial Integrity Solutions, LLC By: Print: Rich Munkvold Title: Chief Financial Officer 3 EFTA00022957