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                                                                   Exhibit 10.15

                                                                  EXECUTION COPY

                        STOCKHOLDER ASSUMPTION AGREEMENT

                  THIS ASSUMPTION AGREEMENT dated as of December 19, 2001 (the
"Agreement") is entered into by and between Aloha Securities & Investment
Company, a Hawaii limited partnership ("ASIC"), Sheridan Ing Partners Hawaii, a
Hawaii limited partnership ("SIPH", and, together with ASIC, the
"Stockholders"), Glenn R. Zander ("GZ") and Brenda F. Cutwright ("BC", and
together with GZ, the "Executives").

                  WHEREAS Aloha Airgroup, Inc. (the "Employer") and GZ have
entered into an amended and restated employment agreement made as of May 11,
1994, as amended as of December 1, 1995 and November 1, 2000 (the "GZ Employment
Agreement");

                  WHEREAS the Employer and BC have entered into an employment
agreement made as of January 1, 1994, as amended and restated as of January 1,
1997 (the "BC Employment Agreement" and, together with the GZ Employment
Agreement, the "Employment Agreements");

                  WHEREAS the Employer has entered into a merger agreement dated
as of the date hereof among Hawaiian Airlines, Inc., TurnWorks Acquisition III,
Inc. and TurnWorks, Inc. (the "Merger Agreement"), pursuant to which the
Employer intends to participate in the mergers described therein (the
"Mergers");

                  WHEREAS, in contemplation of the Mergers, the Executives and
the Employer desired to further amend the Employment Agreements and, in
furtherance of that objective, the Employer and GZ entered into an employment
amendment agreement dated the date hereof (the "GZ Amendment") and the Employer
and BC entered into an employment amendment agreement dated the date hereof (the
"BC Amendment" and, together with the GZ Amendment, the "Amendments"); and

                  WHEREAS, in order to induce the Executives to enter into the
Amendments, the Stockholders have agreed to assume and pay those liabilities of
the Employer under the Employment Agreements as specifically set forth herein;

                  NOW, THEREFORE, in consideration of the recitals and
agreements herein contained, the parties agree as follows:

         1. EFFECTIVENESS. This Agreement shall not become effective until
immediately prior to the Effective Time (as such term is defined in the Merger
Agreement).

         2. TERMINATION. (a) This Agreement shall immediately terminate (without
the need for any further action by any of the parties hereto) if the Merger
Agreement is terminated for any reason whatsoever.

         (b) In the event of the termination of this Agreement pursuant to the
provisions of this Section 2, this Agreement shall become void and have no
effect, without any liability on the part of any party hereto or its directors,
officers, stockholders or partners, or any persons who control any of the
foregoing, in respect of this Agreement.

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         3. ASSUMPTION. Each Stockholder agrees to assume, and immediately prior
to the Effective Time shall assume, perform and pay, the liabilities of the
Employer under the Employment Agreements with respect to:

         (a) the Separation Payment payable under Section 4(f)(ii) of each
Executive's Employment Agreement; and

         (b) all payments in respect of any and all stock options granted to
each Executive prior to the Date of Termination, regardless of whether or not
such options have vested.

         Notwithstanding anything herein to the contrary, ASIC's maximum
liability under this Agreement shall be $3,711,379 and SIPH's maximum liability
under this Agreement shall be $1,237,126.

         4. SEPARATION PAYMENTS. Each of the Executives hereby agrees that the
Stockholders' liability to the Executives assumed under Section 3(a) hereof
shall be satisfied in full by the payment (in immediately available funds) by
the Stockholders of $1,527,279 in the aggregate to GZ (the "GZ Separation
Payment") and by the payment (in immediately available funds) by the
Stockholders of $766,826 in the aggregate to BC (the "BC Separation Payment").

         5. STOCK OPTION PAYMENTS. Each of the Executives hereby agrees that the
Stockholders' liability to the Executives assumed under Section 3(b) hereof
shall be satisfied in full by the payment (in immediately available funds) by
the Stockholders of $1,705,800 in the aggregate to GZ (the "GZ Stock Option
Payment" and, together with the GZ Separation Payment, the "GZ Stockholders
Payment") and by the payment (in immediately available funds) by the
Stockholders of $948,600 in the aggregate to BC (the "BC Stock Option Payment"
and, together with the BC Separation Payment, the "BC Stockholders Payment").

         6. NO OTHER CLAIMS. (a) GZ hereby acknowledges and agrees that, upon
receipt of the GZ Stockholders Payment, and without prejudice to any rights GZ
may have against the Employer arising out of his employment, GZ will have no
additional claim whatsoever against any stockholder of the Employer.

         (b) BC hereby acknowledges and agrees that, upon receipt of the BC
Stockholders Payment, and without prejudice to any rights BC may have against
the Employer arising out of her employment, BC will have no additional claim
whatsoever against any stockholder of the Employer:

         7. AMENDMENT. The provisions of this Agreement may not be amended,
waived or modified unless such amendment, waiver or modification is in writing
and signed by the parties hereto.

         8. CAPITALIZED TERMS. Capitalized terms used but not defined herein
shall have the meanings assigned to such terms in the Employment Agreements.

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         9. GOVERNING LAW. This Agreement shall be deemed to be a contract made
under the laws of the State of Hawaii, and for all purposes governed by and
construed in accordance with the laws of such State applicable to contracts made
and performed entirely within such State.

         10. COUNTERPARTS. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original but all of which
together will constitute one and the same instrument.

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         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed on their behalf as of the date first written above.

                                ALOHA SECURITIES & INVESTMENT COMPANY, a
                                Hawaii Limited Partnership, by its
                                General Partner:

                                ALOHA INVESTMENT COMPANY INC., a
                                Hawaii corporation

                                    /s/ Han H. Ching
                                  ----------------------------------------
                                  Name: Han H. Ching
                                  Title: Vice President

                                SHERIDAN ING PARTNERS HAWAII, a
                                Hawaii Limited Partnership, by its General
                                Partner:

                                Louise K.Y. Ing and Richard K.M. Ing,
                                Co-Trustees  of the FLP Trust dated May 21, 1987

                                    /s/ Louise K.Y. Ing
                                  ----------------------------------------
                                  Name: Louise K.Y. Ing
                                  Title: Co-Trustee

                                    /s/ Richard K.M Ing
                                  ----------------------------------------
                                  Name: Richard K.M. Ing
                                  Title: Co-Trustee

  /s/ Glenn R. Zander
--------------------------------
Glenn R. Zander

  /s/ Brenda R. Cutwright
--------------------------------
Brenda F. Cutwright

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                                                                   Exhibit 10.16

                                                                  EXECUTION COPY

              AMENDMENT TO THE GLENN R. ZANDER EMPLOYMENT AGREEMENT

         THIS AMENDMENT made as of December 19, 2001 (the "Amendment") is
entered into by and between Aloha Airgroup, Inc., a Hawaii corporation (the
"Employer"), and Glenn R. Zander (the "Executive").

         WHEREAS the Employer and the Executive have entered into an amended and
restated employment agreement made as of May 11, 1994, as amended as of December
1, 1995 and November 1, 2000 (the "Employment Agreement");

         WHEREAS the Employer has entered into a merger agreement among Hawaiian
Airlines, Inc., TurnWorks Acquisition III, Inc. and TurnWorks, Inc., pursuant to
which the Employer intends to participate in the mergers described therein (the
"Mergers");

         WHEREAS, in contemplation of the Mergers, the parties hereto desire to
further amend the Employment Agreement;

         WHEREAS, the Employment Agreement as amended by this Amendment shall
continue in effect in accordance with its terms after the Mergers as an
obligation of the surviving corporation; and

         WHEREAS Section 10 of the Employment Agreement authorizes the parties
hereto to amend the Employment Agreement;

         NOW, THEREFORE, in consideration of the recitals and agreements herein
contained, the parties hereto agree to amend the Employment Agreement as
follows:

         1. EFFECTIVENESS. The parties hereto each expressly acknowledge and
agree that this Amendment will not become effective unless and until such time
as the Executive has received the GZ Stockholders Payment (as such term is
defined in the Stockholder Assumption Agreement dated as of the date hereof
among the Executive, Brenda F. Cutwright, Aloha Securities & Investment Co. and
Sheridan Ing Partners Hawaii). Such payment is referred to in this Amendment as
the "Stockholders Payment".

         2. NOTICE OF TERMINATION. The parties hereto agree that the Date of
Termination for the Executive's employment with the Company shall be the last
day of the month in which falls the sixtieth day following the Effective Time
(as such term is defined in the Merger Agreement); and the parties hereto waive
any and all other notice requirements relating to such Date of Termination which
may be required by the Employment Agreement.

         3. TERMINATION FOLLOWING CHANGE IN CONTROL. In consideration for the
waiver of entitlements set forth in Section 4 hereof and the release and waiver
of claims set forth in Section 5 hereof, the last sentence of Section 6(f) of
the Employment Agreement is hereby deleted and the first sentence of Section
4(f) of the Employment Agreement is hereby amended to read as follows:

            (f)   TERMINATION FOLLOWING CHANGE IN CONTROL. If a Change in
                  Control shall have occurred, the Executive shall immediately
                  be entitled to exercise the Executive Residence Put Option and
                  to receive all of the benefits provided upon his Retirement,
                  as specified in Section 4(e) hereof, in addition to the
                  benefits set forth below in this Section 4(f), without regard
                  to the limitations on benefits set forth in subsection
                  4(f)(iv) below, unless such termination or notification is
                  because of the Executive's death or as a result of a Notice of
                  Termination given by the Employer for Cause or Disability, or
                  by the Executive for other than Retirement or "Good Reason."

         4. WAIVER OF ENTITLEMENTS. The Executive hereby waives his right under
the Employment Agreement to (a) receive any Separation Payment under Section
4(f)(ii) of the Employment Agreement (provided, however, that the amounts which
would otherwise have been payable under such Section 4(f)(ii) shall continue to
be included in

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"compensation" for purposes of Section 4(f)(v) of the Employment Agreement
notwithstanding the Executive's waiver of the right to receive such amounts),
(b) receive any Severance Payment under Section 4(b) of the Employment Agreement
and (c) exercise, or receive any payments in respect of, any and all stock
options granted to the Executive prior to the Date of Termination, regardless of
whether or not such options have vested (such waived rights, collectively, the
"Waived Entitlements").

         5. RELEASE AND WAIVER OF CLAIMS.

         (a) For purposes of this release and waiver of claims, "Employer
Parties" means the Employer and any and all of its predecessor companies,
successor companies, parent companies, subsidiaries and affiliates wherever
located and each of its present, former and future directors, officers,
employees, agents, attorneys, heirs and assigns.

         (b) In consideration of the agreements set forth in this Amendment and
the value received as described in this Amendment (including, without
limitation, the Stockholders Payment), the receipt and adequacy of which are
hereby acknowledged by the Executive, the Executive hereby releases and
discharges the Employer Parties from any and all claims, actions, causes of
action, suits, costs, controversies, judgments, decrees, verdicts, damages,
liabilities, attorneys' fees, covenants, contracts, and agreements that the
Executive may have, or in the future may possess, with respect to the Employer
Parties relating to the Waived Entitlements, including, but not limited to, any
claims arising under Title VII of the Civil Rights Act of 1964, the
Rehabilitation Act of 1973, the Americans with Disabilities Act of 1990, the
Civil Rights Act of 1866, the Civil Rights Act of 1991, the Employee Retirement
Income Security Act of 1974, the Family Medical Leave Act of 1993, the Hawaii
Civil Rights Act, the Hawaii Employment Practices Act, H.R.S. Chapter 378, the
Hawaii Family Leave Act, H.R.S. Chapter 398 or any other federal or state or
local law, whether such claim arises under statute, common law or in equity, and
whether or not the Executive or any of the Employer Parties are presently aware
of the existence of such claim, damage, action or cause of action, suit or
demand. Solely with respect to the Waived Entitlements, the Executive also
hereby forever releases, discharges and waives any right the Executive may have
to recover in any proceeding brought by any federal, state or local agency
against the Employer Parties to enforce any laws. The Executive agrees that the
value received as described in this Amendment (including, without limitation,
the Stockholders Payment) shall be in full satisfaction of any and all claims,
actions or causes of action for payment or other benefits of any kind that the
Executive may have against the Employer Parties with respect to the Waived
Entitlements.

         (c) In further recognition of the consideration cited above, the
Executive hereby releases and forever discharges each of the Employer Parties
from any and all claims, actions and causes of action that the Executive may
have relating to the Waived Entitlements as of the date the Executive signs and
delivers to the Employer this Amendment arising under the federal Age
Discrimination in the Employment Act of 1967, as amended, and the applicable
rules and regulations promulgated thereunder ("ADEA") which may be based in
whole or in part on age discrimination.

         6. NO OTHER WAIVER OR RELEASE. THE EMPLOYER EXPRESSLY ACKNOWLEDGES AND
AGREES THAT THE WAIVER BY THE EXECUTIVE OF THE WAIVED ENTITLEMENTS AND THE
RELEASE AND WAIVER OF CLAIMS RELATING TO THE WAIVED ENTITLEMENTS SHALL NOT
CONSTITUTE A WAIVER OR RELEASE OF ANY OTHER RIGHTS, BENEFITS OR ENTITLEMENTS TO
WHICH THE EXECUTIVE IS ENTITLED UNDER THE EMPLOYMENT AGREEMENT, AS AMENDED BY
THIS AMENDMENT, AND THAT THE EXECUTIVE SHALL BE ENTITLED TO BE PAID ALL SUCH
OTHER AMOUNTS AND RECEIVE ALL SUCH OTHER BENEFITS AS ARE PROVIDED FOR IN THE
EMPLOYMENT AGREEMENT, AS AMENDED BY THIS AMENDMENT.

         7. NON-COMPETITION AND TRADE SECRETS. Section 5(a) of the Employment
Agreement is hereby deleted in its entirety and replaced with the following:

            (a)   NO COMPETING EMPLOYMENT. During the Term and for a period of
                  three years after the Date of Termination (the "Restricted
                  Period") the Executive shall not, without the prior written
                  consent of the Employer, directly or indirectly, own an
                  interest in, manage, operate, join, control, lend money or
                  render financial or other assistance to or participate in or
                  be connected with, as an officer, employee, partner,
                  stockholder, creditor, investor, consultant or otherwise, any
                  individual partnership, firm, corporation or other business
                  organization or entity (collectively, an "Entity") that, at
                  such time: (a) is headquartered in

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                  Hawaii and is primarily engaged in the business of passenger
                  or freight airline services or aircraft ground maintenance
                  operations; (b) is an airline that has Hawaii inter-island
                  passenger or freight services that constitute a material share
                  of its overall airline business measured by passenger revenue
                  miles or freight pound miles; or (c) has 5% or more of the
                  Hawaii inter-island passenger or freight air traffic measured
                  by passenger revenue miles or freight pound miles AND the
                  Executive is serving directly as an officer, --- employee,
                  partner or consultant of such Entity's Hawaii operations, or
                  otherwise has significant duties or responsibilities involving
                  such Entity's Hawaii operations. For the avoidance of doubt, a
                  senior management position at a parent Entity for which the
                  Hawaii operations are not a material part of the Entity on a
                  consolidated basis will not be limited by the foregoing
                  provisions.

         8. ACKNOWLEDGMENT. By signing this Amendment, the Executive hereby
acknowledges and confirms that in connection with this Amendment the Executive,
as advised by the Employer, consulted with an attorney of the Executive's choice
prior to signing this Amendment and had such attorney explain to the Executive
the terms of this Amendment including, without limitation, the terms relating to
the Executive's release of claims arising under ADEA.

         9. ACCEPTANCE. Subject to Section 1 hereof, the Executive may indicate
the Executive's acceptance of this Amendment by signing and dating both copies
of this Amendment and delivering one such copy to the Employer.

         10. CAPITALIZED TERMS. Capitalized terms used but not defined herein
shall have the meaning assigned to such terms in the Employment Agreement.

         11. GOVERNING LAW. This Amendment shall be deemed to be a contract made
under the laws of the State of Hawaii, and for all purposes governed by and
construed in accordance with the laws of such State applicable to contracts made
and performed entirely within such State.

         12. COUNTERPARTS. This Amendment may be executed in two or more
counterparts, each of which shall be deemed to be an original but all of which
together will constitute one and the same instrument.

                                     * * * *

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         The Executive's signature on the line below constitutes the Executive's
agreement with each provision contained herein.

                                           ALOHA AIRGROUP, INC.

                                               /s/ Han H. Ching
                                             -----------------------------------
                                             Name: Han H. Ching
                                             Title: Corporate Secretary

ACKNOWLEDGED AND AGREED:

  /s/ Glenn R. Zander
------------------------------------
Glenn R. Zander

Date:  December 19, 2001

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