NOTE F — INTANGIBLE ASSETS

In accordance with ASC 350, Intangibles — Goodwill and Other (“ASC 350”), goodwill and other intangible assets deemed to have indefinite lives are not amortized, but are subject to annual impairment tests. The Company reviews and evaluates our goodwill and indefinite life intangible assets for potential impairment at a minimum annually or more frequently if circumstances indicate that impairment is possible.

The Company determined the fair value of assets acquired and liabilities assumed using a variety of methods. An income approach based on discounted cash flows was used to determine the values of our trademarks, certifications, customer relationships and Federal Aviation Administration (“FAA”) certificates. The assumptions the Company used to estimate the fair value of our reporting units are based on historical performance, as well as forecasts used in our current business plan and require considerable management judgment.

The Company’s goodwill and intangible assets as defined by ASC 350 is related to our subsidiaries, AerSale Component Solutions (d/b/a AerSale Landing Gear Solutions) (“ALGS”), Avborne Component Solutions (d/b/a AerSale Component Solutions) (“ACS”), and Aircraft Composite Technologies (“ACT”), which are included in the TechOps segment, as well as Qwest, which is included under the Asset Management Solutions segment.

Goodwill and other intangibles as of the below dates are (in thousands):

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The Company performed its annual quantitative impairment analysis on the indefinite lived intangible assets as of July 1, 2023 and 2022 and concluded there was no impairment.

Intangible assets with definite useful lives are amortized on a straight-line basis over their estimated useful lives. Intangible assets with definite lives as of the below dates are as follows (in thousands):

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Total amortization expense amounted to $0.5 million for the three months ended September 30, 2023 and 2022. Total amortization expense amounted to $1.6 million for the nine months ended September 30, 2023 and 2022. Accumulated amortization amounted to $8.8 million and $7.2 million as of September 30, 2023 and December 31, 2022, respectively.

Other intangible assets are reviewed at least annually or more frequently if any event or change in circumstance indicates that an impairment may have occurred.