AIRCRAFT TIME SHARING AGREEMENT

Exhibit 10.34

QWEST BUSINESS RESOURCES, INC.

AIRCRAFT TIME SHARING AGREEMENT

This Aircraft Time Sharing Agreement (“Agreement”) by and between Qwest Business Resources, Inc. (“Lessor”), a Colorado corporation whose address is 1801 California Street, Denver, Colorado 80202 and Barry Allen (“Lessee”), whose address is 256 Cook Street, Denver, Colorado 80206 (collectively the “Parties”), is effective February 14, 2006 and shall terminate on December 31, 2008, unless terminated sooner by either party pursuant to Article 1 below.

WHEREAS, Lessor is legal owner of an aircraft (“Aircraft”), equipped with engines and components as described in the Aircraft Subject to the Time Sharing Agreement attached hereto and made a part hereof, as Exhibit A;

WHEREAS, Lessor has the right of possession of an aircraft (“Aircraft”), equipped with engines and components as described in the Leased Aircraft Subject to the Time Sharing Agreement attached hereto and made a part hereof, as Exhibit B;

WHEREAS, Lessor has contracted for a fully qualified flight crew to operate the Aircraft; and

WHEREAS, Lessor desires to provide to Lessee, and Lessee desires to have the use of said Aircraft with flight crew on a non-exclusive time sharing basis as defined in Section 91.501(c)(1) of the Federal Aviation Regulations (“FAR”);

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WHEREAS, this Agreement sets forth the understanding of the Parties as to the terms under which Lessor will provide Lessee with the use, on a periodic basis, of the Aircraft as described in Exhibits A and B hereto, currently owned or operated by Lessor.

WHEREAS, the use of the Aircraft will at all times be pursuant to and in full compliance with the requirements of Federal Aviation Regulations (“FAR”) 91.501(b)(6), 91.501(c)(1), and 91.501(d);

NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained, the Parties agree as follows:

1. Termination.

Either party may terminate this Agreement for any reason upon written notice to the other, such termination to become effective ten (10) days from the date of the notice; provided that this Agreement may be terminated on such shorter notice as may be required to comply with applicable laws, regulations, the requirements of any financial institution with a security or other interest in the Aircraft, insurance requirements or in the event the insurance required hereunder is not in full force and effect.

2. Use of Aircraft.

(a) Lessee may use the Aircraft from time to time, with the permission and approval of Lessor’s Flight Operations Department, for any and all purposes allowed by FAR 91.501(b)(6) at such times as the Lessor does not require the use of the Aircraft for the business purposes of Lessor or an affiliate. Lessee’s use

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shall include the use of the Aircraft by his Spouse or related family member (including children or grandchildren) (“Related Family”) if they accompany him on the flight.

(b) Lessee represents, warrants and covenants to Lessor that:

(c) Lessee shall provide Lessor’s Flight Operations Department with notice of his desire to use the Aircraft and proposed flight schedules as far in advance of any

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given flight as possible, and in any case, at least forty-eight (48) hours in advance of Lessee’s planned departure. Requests for flight time shall be in a form, whether written or oral, mutually convenient to, and agreed upon by the Parties. In addition to the proposed schedules and flight times Lessee shall provide at least the following information for each proposed flight at some time prior to scheduled departure as required by the Lessor or Lessor’s flight crew:

(c) Lessor shall notify Lessee as to whether or not the requested use of the Aircraft can be accommodated and, if not, the Parties shall discuss alternatives.

(d) Lessor’s prior planned utilization of the Aircraft will take precedence over Lessee’s use. Additionally, any maintenance and inspection of the Aircraft takes precedence over scheduling of the Aircraft unless such maintenance or inspection can be safely deferred in accordance with applicable laws and regulations and within the sound discretion of the Pilot-In-Command.

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(e) Lessor shall have sole and exclusive authority over the scheduling of the Aircraft, including which Aircraft is used for any particular flight.

(f) Lessor shall not be liable to Lessee or any other person for loss, injury, or damage occasioned by the delay or failure to furnish the Aircraft and crew pursuant to this Agreement for any reason.

3. Time-Sharing Arrangement.

It is intended that this Agreement will meet the requirements of a “Time Sharing Agreement” as that term is defined in FAR Part 91.501(c)(1) whereby Lessor will lease its Aircraft and flight crew to Lessee.

4. Cost of Use of Aircraft.

(a) In exchange for use of the Aircraft, Lessee shall pay the direct operating costs of the Aircraft permitted pursuant to FAR 91.501 for any flight conducted under this Agreement or a lesser amount as mutually agreed to by the Parties. Pursuant to FAR 91.501(d), those direct operating costs shall be limited to the following expenses for each use of the Aircraft:

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5. Invoicing and Payment.

All payments to be made to Lessor by Lessee hereunder shall be paid in the manner set forth in this Paragraph 5. Lessor will pay to suppliers, employees, contractors and government entities all expenses related to the operations of the Aircraft hereunder in the ordinary course. As to each flight operated hereunder, Lessor shall provide to Lessee an invoice for the charges specified in Paragraph 4 of this Agreement (plus domestic or international air transportation Excise Taxes, as applicable, imposed by the Internal Revenue Code and collected by Lessor), such invoice to be issued within thirty (30) days after the completion of each such flight. Lessee shall pay Lessor the full amount of such invoice upon receipt of the invoice. In the event Lessor has not received a supplier invoice for reimbursable charges relating to such flight prior to such invoicing, Lessor shall issue a supplemental invoice for such charges to Lessee within thirty (30) days of the date of receipt of the supplier invoice and Lessee shall pay such supplemental invoice

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amount upon receipt thereof. All such invoices shall separately itemize the expenses in items (1) through (9) of paragraph 4(a) for each flight included in that invoice. Delinquent payments, defined as payments received more than thirty (30) days after invoice, to Lessor by Lessee hereunder shall bear interest at the rate of ten percent (10%) per annum from the due date until the date of payment. Lessee shall further pay all costs incurred by Lessor in collecting any amounts due from Lessee pursuant to the provisions of this Paragraph 5 after delinquency, including court costs and reasonably attorneys’ fees.

6. Insurance and Limitation of Liability.

Lessor represents that the flight operations for the Aircraft as contemplated in this Agreement will be covered by the Lessor’s aircraft all-risk physical damage insurance (hull Coverage), aircraft bodily injury and property damage liability insurance, passenger, pilot and crew voluntary settlement insurance and statutory workers compensation and employer’s liability insurance.

(a) Insurance.