Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the Quarterly Period Ended November 30, 2012

or

For the transition period from                              to                              

Commission File No. 1-6263

AAR CORP.

(Exact name of registrant as specified in its charter)

(630) 227-2000

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

As of November 30, 2012, there were 39,694,849 shares of the registrant’s Common Stock, $1.00 par value per share, outstanding.

Table of Contents

AAR CORP. and Subsidiaries

Quarterly Report on Form 10-Q

For the Quarter Ended November 30, 2012

Table of Contents

2

Table of Contents

PART I — FINANCIAL INFORMATION

Item 1 — Financial Statements

AAR CORP. and Subsidiaries

Condensed Consolidated Balance Sheets

As of November 30, 2012 and May 31, 2012

(In millions, except share data)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

3

Table of Contents

AAR CORP. and Subsidiaries

Condensed Consolidated Balance Sheets

As of November 30, 2012 and May 31, 2012

(In millions, except share data)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

4

Table of Contents

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Income

For the Three and Six Months Ended November 30, 2012 and 2011

(Unaudited)

(In millions, except per share data)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

5

Table of Contents

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Comprehensive Income

For the Three and Six Months Ended November 30, 2012 and 2011

(Unaudited)

(In millions)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

6

Table of Contents

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

For the Six Months Ended November 30, 2012 and 2011

(Unaudited)

(In millions)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

7

Table of Contents

AAR CORP. and Subsidiaries

Condensed Consolidated Statement of Changes in Equity

For the Six Months Ended November 30, 2012

(Unaudited)

(In millions)

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

8

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

Note 1 — Basis of Presentation

AAR CORP. and its subsidiaries are referred to herein collectively as “AAR,” “Company,” “we,” “us,” and “our,” unless the context indicates otherwise.  The accompanying condensed consolidated financial statements include the accounts of AAR and its subsidiaries after elimination of intercompany accounts and transactions.

We have prepared these statements without audit, pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”).  The condensed consolidated balance sheet as of May 31, 2012 has been derived from audited financial statements.  To prepare the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”), management has made a number of estimates and assumptions relating to the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities.  Actual results could differ from those estimates.  Certain information and note disclosures, normally included in comprehensive financial statements prepared in accordance with GAAP, have been condensed or omitted pursuant to such rules and regulations of the SEC.  These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our latest annual report on Form 10-K.

In the opinion of management, the condensed consolidated financial statements reflect all adjustments (which consist only of normal recurring adjustments) necessary to present fairly the condensed consolidated financial position of AAR CORP. and its subsidiaries as of November 30, 2012, the condensed consolidated statements of income and the condensed consolidated statements of comprehensive income, for the three- and six-month periods ended November 30, 2012 and 2011, the condensed consolidated statements of cash flows for the six-month periods ended November 30, 2012 and 2011 and the condensed consolidated statement of changes in equity for the six-month period ended November 30, 2012.  The results of operations for such interim periods are not necessarily indicative of the results for the full year.

Note 2 — Revenue Recognition

Sales and related cost of sales for product sales are recognized upon shipment of the product to the customer.  Our standard terms and conditions provide that title passes to the customer when the product is shipped to the customer.  Sales of certain defense products are recognized upon customer acceptance, which includes transfer of title.  Under the majority of our expeditionary airlift services contracts, we are paid and record as revenue a fixed daily amount per aircraft for each day an aircraft is available to perform airlift services.  In addition, we are paid and record as revenue an amount which is based on number of hours flown.  Sales from services and the related cost of services are generally recognized when customer-owned material is shipped back to the customer.  We have adopted this accounting policy because at the time the customer-owned material is shipped back to the customer, all services related to that material are complete as our service agreements generally do not require us to provide services at customer sites.  Furthermore, serviced units are typically shipped to the customer immediately upon completion of the related services.  Sales and related cost of sales for certain long-term manufacturing contracts and certain large airframe maintenance contracts and performance-based logistics programs are recognized by the percentage of completion method, either based on the relationship of costs incurred to date to estimated total costs or the units of delivery method.  Lease revenues are recognized as earned.  Income from monthly or quarterly rental payments is recorded in the pertinent period according to the lease agreement.  However, for leases that provide variable rents, we recognize lease income on a straight-line basis.  In addition to a monthly lease rate, some engine leases require an additional rental amount based on the number of hours the engine is used in a particular month.  Lease income associated with these contingent rentals is recorded in the period in which actual usage is reported to us by the lessee, which is normally the month following the actual usage.

Certain supply chain management programs we provide our customers contain multiple elements or deliverables, such as program and warehouse management, parts distribution and maintenance and repair services.  We recognize revenue for each element or deliverable that can be identified as a separate unit of accounting at the time of delivery based upon the relative fair value of the products and services.

9

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

Included in accounts receivable as of November 30, 2012 and May 31, 2012, are $31.0 million and $36.2 million, respectively, of unbilled accounts receivable related to our KC10 supply agreement.  These unbilled accounts receivable relate to costs we have incurred on parts that were requested and accepted by our customer to support the program.  These costs have not been billed by us because the customer has not approved and issued the final paperwork necessary to allow for billing.

In addition to the unbilled accounts receivable, included in Other on the condensed consolidated balance sheet as of November 30, 2012 and May 31, 2012, are $30.6 million and $27.9 million, respectively, of costs in excess of amounts billed for the same KC10 supply agreement.  We expect to recover costs in excess of amounts billed through future billings over the life of the program.

Note 3 — Accounting for Stock-Based Compensation

Stock Options

In July 2012, as part of our annual long-term stock incentive compensation, we granted 958,180 stock options to eligible employees at an exercise price of $12.90 and fair value of $4.6 million. The fair value of stock options is estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

The total intrinsic value of stock options exercised during the six-month periods ended November 30, 2012 and 2011 was $ 0.1 million and $3.3 million, respectively.  Expense charged to operations for stock options was $0.9 million and $1.1 million during the second quarters of fiscal years 2013 and 2012, respectively, and $1.6 million and $2.2 million during the six months ended November 30, 2012 and 2011, respectively.

Restricted Stock

In July 2012, as part of our annual long-term stock incentive compensation, we granted 53,280 shares of performance-based restricted stock and 65,780 restricted shares to eligible employees.  The grant date fair value per share was $12.90.  We also granted 45,000 restricted shares to members of the Board of Directors with a grant date fair value per share of $11.56.  Expense charged to operations for restricted stock was $0.9 million and $2.4 million during the second quarters of fiscal years 2012 and 2011, respectively, and $3.1 million and $3.9 million during the six months ended November 30, 2012 and 2011, respectively.  The expense charged to operations for restricted stock for the second quarter of fiscal 2013 is lower than prior quarters due to the cancellation of awards related to a key executive’s departure from the company.

10

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

Note 4 — Inventory

The summary of inventories is as follows:

Note 5 — Supplemental Cash Flow Information

Note 6 — Financing Arrangements

A summary of the carrying amount of our debt is as follows:

11

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

During the six-month period ended November 30, 2012, we repurchased $6.4 million par value of our 1.625% convertible notes due March 1, 2014, $5.5 million par value of our 2.25% convertible notes due March 1, 2016 and $11.0 million par value of our 1.75% convertible notes due February 1, 2026.  The 1.625% notes, 2.25% notes and 1.75% notes were repurchased for $6.1 million, $4.9 million and $11.0 million cash, respectively, with a total loss of $0.3 million, after consideration of unamortized discount and debt issuance costs.  The losses on the debt repurchases for the 1.625%, 2.25% and 1.75% convertible notes are recorded in Loss on extinguishment of debt on the condensed consolidated statements of income.

During the six-month period ended November 30, 2012, we paid $8.4 million principal amount of our 7.22% debt due July 19, 2012.

At November 30, 2012, the face value of our debt was $794.2 million and the estimated fair value was approximately $793.1 million.

The fair value amounts of our long-term debt securities are estimated using significant other observable inputs including quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.  The debt is classified as Level 2 in the fair value hierarchy.

We are subject to a number of covenants under our financing arrangements, including restrictions which related to the payment of cash dividends, maintenance of minimum net working capital and tangible net worth levels, fixed charge coverage ratio, sales of assets, additional financing, purchase of our shares and other matters.  We are in compliance with all financial covenants under our financing arrangements.

On December 20, 2012, we commenced an offer to exchange the outstanding unregistered 7.25% Senior Notes due 2022, which were issued in an exempt offering on January 23, 2012, for substantially identical notes that have been registered under the Securities Act of 1933.  These notes are now fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by substantially all of our existing domestic and foreign subsidiaries.

Convertible Notes

As of November 30, 2012 and May 31, 2012, the long-term debt and equity component (recorded in capital surplus, net of income tax benefit) consisted of the following:

The discount on the liability component of long-term debt is being amortized using the effective interest method based on an effective rate of 8.48% for our 1.75% convertible notes; 6.82% for our 1.625% convertible notes and 7.41% for our 2.25% convertible notes.  For our 1.75% convertible notes, the discount is being amortized through February 1, 2013, which is the first put date for those notes.  For our 1.625% and 2.25% convertible notes, the discount is being amortized through their respective maturity dates of March 1, 2014 and March 1, 2016.

As of November 30, 2012 and 2011, for each of our convertible note issuances, the “if converted” value does not exceed its principal amount.

12

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

The interest expense associated with the convertible notes was as follows:

Note 7 — Derivative Instruments and Hedging Activities

We are exposed to interest rate risk associated with fluctuations in interest rates on our variable rate debt.  We utilize two derivative financial instruments to manage our variable interest rate exposure over a medium- to long-term period.  We have a floating-to-fixed interest rate swap and an interest rate cap agreement to each hedge $50.0 million of notional principal balance under our revolving credit agreement.

We do not hold or issue derivative instruments for trading purposes and are not a party to any instruments with leverage or prepayment features.  In connection with derivative financial instruments, there exists the risk of the possible inability of counterparties to meet the terms of their contracts.  We mitigate this risk by performing financial reviews before the contract is entered into, as well as on-going periodic evaluations.  We do not expect any significant losses from counterparty defaults.

We classify the derivatives as assets or liabilities on the balance sheet.  Accounting for the change in fair value of the derivatives is a function of whether the instrument qualifies for, and has been designated as, a hedging relationship, and the type of hedging relationship.  As of November 30, 2012, all of our derivative instruments were classified as cash flow hedges.  The fair value of the interest rate swap and interest cap agreements represents the difference in the present values of cash flows calculated at the contracted interest rates and at current market interest rates at the end of the reporting period.

We record the fair value of assets and liabilities in accordance with the hierarchy established by the authoritative guidance for fair value measurements.  The fair value of our interest rate derivatives are classified as Level 2, which refers to fair values estimated using significant other observable inputs including quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.  The following table summarizes the classification and fair values of our interest rate derivative instruments reported in the condensed consolidated balance sheet as of November 30, 2012.

We include gains and losses on the derivative instruments in other comprehensive income.  We recognize the gains and losses on our derivative instruments as an adjustment to interest expense in the period the hedged

13

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

interest payment affects earnings.  The impact of the interest rate swap and interest cap agreement on the condensed consolidated statement of income for the three-month periods ended November 30, 2012 and 2011 was zero and an unrealized loss of $0.2 million, respectively.  The impact of the interest rate swap and interest cap agreement on the condensed consolidated statement of income for the six-month periods ended November 30, 2012 and 2011 was an unrealized loss of $0.4 million and $2.7 million, respectively.  The unrealized losses were recorded in accumulated other comprehensive income (loss). We expect minimal gain or loss to be reclassified into earnings within the next 12 months.

Note 8 — Earnings per Share

The computation of basic earnings per share is based on the weighted average number of common shares outstanding during each period.  The computation of diluted earnings per share is based on the weighted average number of common shares outstanding during the period plus, when their effect is dilutive, incremental shares consisting of shares subject to stock options, shares issuable upon vesting of restricted stock awards and shares to be issued upon conversion of convertible debt.

We use the “if-converted” method in calculating the diluted earnings per share effect of the assumed conversion of our contingently convertible debt issued in fiscal 2006 because the principal for that issuance can be settled in stock, cash or a combination thereof.  Under the “if converted” method, the after-tax effect of interest expense related to the convertible securities is added back to net income, and the convertible debt is assumed to have been converted into common shares at the beginning of the period.

In accordance with ASC 260-10-45, Share-Based Payment Arrangements and Participating Securities and the Two-Class Method, our unvested restricted stock awards are deemed participating securities since these shares are entitled to participate in dividends declared on common shares.  During periods of net income, the calculation of earnings per share for common stock exclude income attributable to unvested restricted stock awards from the numerator and exclude the dilutive impact of those shares from the denominator.  During periods of net loss, no effect is given to the participating securities because they do not share in the losses of the Company.

14

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

The following table provides a reconciliation of the computations of basic and diluted earnings per share information for the three- and six-month periods ended November 30, 2012 and 2011.

At November 30, 2012 and 2011, respectively, stock options to purchase 1,434,020 shares and 267,000 shares of common stock were outstanding but were not included in the computation of diluted earnings per share because the exercise price of each of these options was greater than the average market price of the common shares during the interim periods then ended.

15

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

Note 9 — Acquisitions

On December 2, 2011, we acquired Telair International GmbH (“Telair”) and Nordisk Aviation Products, AS (“Nordisk”).  Telair is a leader in the design, manufacture and support of cargo loading systems for wide-body and narrow-body aircraft with established positions on the world’s most popular current and next-generation passenger and freighter aircraft.  Telair operates from facilities in Germany, Sweden and Singapore.  Nordisk designs and manufactures heavy duty pallets and lightweight cargo containers for commercial airlines from facilities in Norway and China.  The purchase price of the acquisition was $280.0 million paid at closing, plus or minus a working capital adjustment.  During the fourth quarter of fiscal 2012, the working capital adjustment was finalized, which increased the purchase price to $296.5 million.  The $16.5 million was paid in the first quarter of fiscal 2013.  The businesses operate as part of our Technology Products segment.

During the second quarter, we completed the final purchase price allocation for Telair and Nordisk.  We made an adjustment between goodwill and identified intangibles of $11.0 million as part of the final purchase price allocation.  Our Consolidated Balance Sheet at May 31, 2012 has not been retrospectively adjusted to reflect the adjustments as it is not material.  The results of the final purchase price allocation are as follows:

On October 11, 2011, we acquired Airinmar Holdings Limited (“Airinmar”), a sophisticated repair, outsourcing and warranty claim manager.  Airinmar operates as part of our Aviation Services segment.  Total consideration is estimated to be $43.5 million, which included $23.2 million cash paid at closing, and a potential earn-out payment of $20.3 million.  The potential earn-out payment is based upon Airinmar achieving certain EBITDA (earnings before interest, taxes, depreciation and amortization) levels over a two-year period, as well as retaining certain key customers.  In accordance with GAAP, a liability of $20.3 million was recognized as an estimate of the acquisition date fair value of the earn-out and was included in Other non-current liabilities on our consolidated balance sheet as of February 29, 2012.  During the fourth quarter of 2012, this estimate was reduced by $3.4 million and this change in the fair value of the earn-out was recognized in earnings.

During the first quarter of fiscal 2013, we completed the final purchase price allocation for Airinmar and the results are as follows:

16

Table of Contents

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

November 30, 2012

(Unaudited)

(Dollars in millions, except per share amounts)

Note 10 — Program Development Costs

Our Cargo Systems business was selected in June 2005 to provide cargo loading systems for the new Airbus A400M Military Transport Aircraft (“A400M”).  We expect our portion of the revenue from this program to exceed $300 million over the period beginning with the first shipment of the aircraft through fiscal 2021, based on current sales projections for the A400M and expected pricing increases in the cargo loading system to be negotiated with Airbus due to changes in contract specifications.  As of November 30, 2012 and May 31, 2012, we have capitalized, net of reimbursements, $105.5 million and $91.9 million, respectively, of costs associated with the engineering and development of the cargo system.  Sales and related cost of sales will be recognized on the units of delivery method.  In determining the recoverability of the capitalized program development costs, we have made certain judgments and estimates concerning expected revenues and the cost to manufacture the A400M cargo system. We are currently engaged in discussions with Airbus to modify the contract as a result of disputes between the parties. These contract modifications may result in reductions in our role and responsibilities as well as reductions in our expected revenues under the contract.  Failure to reach agreement on contract modifications may lead to arbitration of the parties’ disputes under the dispute resolution provisions of the contract. Differences between actual results and our assumptions may result in our not fully recovering some or all of our program development costs, which could adversely affect our operating results and financial condition.

Note 11 —Aircraft Portfolio

Within our Aviation Services segment, we own commercial aircraft with joint venture partners as well as aircraft that are wholly-owned.  These aircraft are available for lease or sale to commercial air carriers.

Aircraft Owned through Joint Ventures

As of November 30, 2012, we had ownership interests in 16 aircraft with joint venture partners.  In the second quarter of fiscal 2013, the joint venture partners agreed to sell ten of these aircraft.  As of November 30, 2012 and May 31, 2012, our equity investment in aircraft owned with joint venture partners was approximately $41.8 million and $41.3 million, respectively, and is included in Investment in joint ventures on the condensed consolidated balance sheet.  Included in these amounts are receivables for four aircraft which the joint venture has sold and is financing.  Our aircraft joint ventures represent investments in limited liability companies that are accounted for under the equity method of accounting.  Our membership interest in each of these limited liability companies is 50% and the primary business of these companies is the acquisition, ownership, lease and disposition of certain commercial aircraft.  Aircraft are purchased with cash contributions by the members of the companies and debt financing provided to the limited liability companies on a limited recourse basis.  Under the terms of servicing agreements with certain of the limited liability companies, we provide administrative services and technical advisory services, including aircraft evaluations, oversight and logistical support of the maintenance process and records management.  We also provide remarketing services with respect to the divestiture of aircraft by the limited liability companies.  For the six-month periods ended November 30, 2012 and 2011, we were paid $0.3 million and $0.4 million, respectively, for such services.  The income tax benefit or expense related to the operations of the ventures is recorded by the member companies.

Distributions from joint ventures are classified as operating or investing activities in the condensed consolidated statements of cash flows based upon an evaluation of the specific facts and circumstances of each distribution.

Summarized financial information for these limited liability companies is as follows: