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SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Amendment No. 10 )*

Under the Securities Exchange Act of 1934

PACIFIC AIRPORT GROUP

(Name of Issuer)

GRUPO AEROPORTUARIO DEL PACÍFICO, S.A.B. DE C.V.

(Exact Name of Issuer as Specified in its Charter)

SERIES B SHARES

(Title of Class of Securities)

400506101

(CUSIP Number)

Daniel Muñiz Quintanilla
Chief Financial Officer of Grupo México, S.A.B. de C.V.
Attorney-in-Fact of Infraestructura y Transportes México, S.A. de C.V.
Grupo México, S.A.B. de C.V.
Campos Elíseos No. 400
Colonia Lomas de Chapultepec
México City, México 11000
011-5255-1103-5000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

April 8, 2011

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. o

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Section 240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section of the Exchange Act but shall be subject to all other provisions of the Exchange Act (however, see the Notes).

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CUSIP No.		400506101

NAMES OF REPORTING PERSONS

Grupo México, S.A.B. de C.V.

I.R.S. Identification Nos. of above persons (entities only)

13-1808503

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a) o

(b) o

SEC USE ONLY

SOURCE OF FUNDS (SEE INSTRUCTIONS)

CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E)

CITIZENSHIP OR PLACE OF ORGANIZATION

Mexico

SOLE VOTING POWER

NUMBER OF

56,100,000 (See Item 5)

SHARED VOTING POWER

BENEFICIALLY

OWNED BY

56,100,000 (See Item 5)

EACH

SOLE DISPOSITIVE POWER

REPORTING

PERSON

56,100,000 (See Item 5)

WITH

SHARED DISPOSITIVE POWER

56,100,000 (See Item 5)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

112,200,000 (See Item 5)

CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

23.5%

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

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CUSIP No.		. 400506101

NAMES OF REPORTING PERSONS

Infraestructura y Transportes México, S.A. de C.V.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a) o

(b) o

SEC USE ONLY

SOURCE OF FUNDS (SEE INSTRUCTIONS)

CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)

CITIZENSHIP OR PLACE OF ORGANIZATION

Mexico

SOLE VOTING POWER

NUMBER OF

0 (See Item 5)

SHARED VOTING POWER

BENEFICIALLY

OWNED BY

56,100,000 (See Item 5)

EACH

SOLE DISPOSITIVE POWER

REPORTING

PERSON

0 (See Item 5)

WITH

SHARED DISPOSITIVE POWER

56,100,000 (See Item 5)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

56,100,000 (See Item 5)

CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

11.8%

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

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This Amendment No. 10 is being filed by Grupo México, S.A.B. de C.V. (“Grupo México”) and Infraestructura y Transportes México, S.A. de C.V., Grupo México’s 75.0%-owned subsidiary (“ITM” and together with Grupo México, the “Reporting Persons”), with respect to the Series B Shares, without par value (the “Shares”), of Pacific Airport Group (the “Issuer”), and it hereby amends the statement of beneficial ownership on Schedule 13D originally filed on July 9, 2010, as further amended July 12, 2010, July 13, 2010, August 13, 2010, August 25, 2010, September 22, 2010, October 12, 2010, January 25, 2011, February 16, 2011 and March 15, 2011 (collectively with this Amendment No. 10, the “Schedule 13D”). Capitalized terms used herein and not defined herein have the meanings ascribed thereto in the Schedule 13D.

Item 3. Source and Amount of Funds or Other Consideration

Item 3 is hereby amended and supplemented by adding the following:

The source for the approximately $14,463,766.84 (reflects conversion into U.S. dollars based upon the peso / dollar exchange ratio at close on the applicable dates of purchase (as reported by Bloomberg L.P.)) used for the acquisition of the Shares and the ADSs as reported in Item 5 below was working capital of Grupo México or ITM, as applicable.

Item 4. Purpose of Transaction

Item 4 is hereby amended and supplemented by adding the following:

As previously reported, according to the bylaws of the Issuer and Mexican securities laws, any shareholder of the Issuer who owns (directly or through affiliates) 10% of the Issuer Equity Shares has the right to appoint a director to the Board of Directors of the Issuer. On March 18, 2011, the Reporting Persons delivered a letter to the Nominations and Compensation Committee of the Issuer informing it of their intention to exercise their right to appoint a second director to the Board of Directors of the Issuer at the Issuer’s upcoming shareholders meeting on April 27, 2011 on account of their beneficial ownership of more than 20% of the Issuer Equity Shares. On March 30, 2011, in response to an objection by the President of the Nominations and Compensation Committee of the Issuer to the appointment of the second director, the Reporting Persons delivered a letter to the Nominations and Compensation Committee of the Issuer requesting that it inform the other shareholders of the Reporting Persons' intention to exercise their right to appoint a second director to the Board of Directors of the Issuer at the Issuer’s upcoming shareholders meeting on April 27, 2011. Translations of the March 18, 2011 and the March 30, 2011 letters are filed as Exhibits 1 and 2 hereto, respectively, and are incorporated by reference into this Item 4.

The last two sentences of Item 5 (a, b) are incorporated by reference into this Item 4.

Other than as set forth in this Item 4, the Reporting Persons do not have any plans or proposals which relate to or would result in any of the actions set forth in items (a) through (j) of Item 4 of Schedule 13D.

Item 5. Interest in Securities of the Issuer

Item 5 is hereby amended and supplemented by adding the following:

(a, b) Since and including March 15, 2011, Grupo México or ITM, as applicable, has acquired 6,933,050 Shares, as described in Item 5(c) below. As of the date hereof, Grupo México beneficially owns a total of 112,200,000 Shares, consisting of 56,100,000 Shares that Grupo México owns directly, and 56,100,000 Shares held by ITM. (References to “Shares” in this Item 5 include the Shares evidenced by ADSs beneficially

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owned by Grupo México). As of the date hereof, ITM beneficially owns a total of 56,100,000 Shares. The Shares directly owned by Grupo México and ITM represent approximately 11.8% and 11.8%, respectively, or 23.5% in the aggregate, of the total outstanding Shares, based on a total of 476,850,000 Shares outstanding as of December 31, 2009, as reported in the Issuer’s Form 20-F for the fiscal year ended December 31, 2009. Grupo México has the sole power to vote or direct the vote of the 56,100,000 Shares that it owns directly, and has shared power to vote or direct the vote of the 56,100,000 Shares held by ITM. ITM does not have the sole power to vote or direct the vote of any of the 56,100,000 Shares that it owns directly, and has shared power to vote or direct the vote of such Shares. Grupo México has the sole power to dispose or direct the disposition of the 56,100,000 Shares that it owns directly, and has shared power to dispose or direct the disposition of the 56,100,000 Shares held by ITM. ITM does not have the sole power to dispose or direct the disposition of any of the 56,100,000 Shares that it owns directly, and has shared power to dispose or direct the disposition of such Shares. Grupo México’s beneficial ownership of 112,200,000 Shares represents 20.0% of the total outstanding Issuer Equity Shares, based on a total of 561,000,000 Issuer Equity Shares outstanding as of December 31, 2009, as reported in the Issuer’s Form 20-F for the fiscal year ended December 31, 2009. The bylaws of the Issuer provide that no holder of Shares may hold in excess of 10.0% of the total outstanding Issuer Equity Shares, or exercise voting rights with respect to such excess Shares. As a result of such provision, Grupo México may be required to dispose in the open market of 56,100,000 of its Shares in order to reduce its beneficial ownership of Issuer Equity Shares to 10.0% of the outstanding Issuer Equity Shares, and it does not have the ability to exercise voting rights with respect to such number of Shares. As previously reported, representatives of the Issuer asked Grupo México and ITM to dispose of Shares in order to reduce Grupo México’s beneficial ownership of Issuer Equity Shares to 10.0% of the total outstanding Issuer Equity Shares. Grupo México and ITM have filed a claim with the relevant Court in Mexico seeking, among other things, that the Court determine that such provisions of the Issuer’s bylaws are invalid under applicable Mexican law.

(c) The table below sets forth the transactions in Shares since and including March 15, 2011 by the Reporting Persons. Except as otherwise indicated in the table below, all such transactions were open market purchases by Grupo México or ITM, as applicable, of Shares on the Mexican Stock Exchange in Mexican pesos. The amounts reported in the “Weighted Average Price Per Share” column below reflect a weighted average price for the Shares purchased or sold on the particular day. Certain Shares were purchased in multiple transactions on one day, each at a price within the range of prices set forth in the “Range of Prices” column below. The Reporting Persons undertake to provide to the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares purchased or sold, as applicable, within the range of prices set forth below.


				Daily
				Weighted Average			Daily
Date of	Number of Shares			Price Per Share			Range of Prices
Transaction	Purchased			(U.S.$)*			(U.S.$)*
3/15/2011		320,000	***		4.04		4.01-4.08
3/15/2011		80,000			4.06	**	4.05-4.07**
3/16/2011		355,000	***		4.00		3.95-4.04
3/16/2011		45,000			3.99	**	3.98-4.00**
3/17/2011		340,000	***		4.02		3.97-4.04
3/17/2011		58,000			4.03	**	3.99-4.04**
3/18/2011		750,000	***		3.95		3.91-3.99
3/21/2011		60,000	***		4.04		3.98-4.07
3/22/2011		360,000	***		4.05		4.00-4.08
3/22/2011		80,000			4.06	**	4.01-4.06**
3/23/2011		224,000	***		4.05		4.03-4.07
3/23/2011		60,000			4.05	**	4.03-4.06**

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				Daily
				Weighted Average			Daily
Date of	Number of Shares			Price Per Share			Range of Prices
Transaction	Purchased			(U.S.$)*			(U.S.$)*
3/24/2011		240,000	***		4.07		4.04-4.11
3/24/2011		78,000			4.06	**	3.98-4.10**
3/25/2011		265,000	***		4.09		4.06-4.13
3/25/2011		60,000			4.09	**	4.06-4.12**
3/28/2011		237,000	***		4.09		4.06-4.12
3/28/2011		143,600			4.09	**	4.06-4.12**
3/29/2011		221,000	***		4.16		4.07-4.19
3/29/2011		130,000			4.18	**	4.16-4.18**
3/30/2011		450,000	***		4.15		4.12-4.21
3/30/2011		150,000			4.13	**	4.12-4.19**
3/31/2011		50,000	***		4.20		4.18-4.22
4/8/2011		2,076,450			4.26	**	4.17-4.27**
4/8/2011		100,000			4.27	**	4.27**


*		Prices do not include broker commissions.

**		Reported prices reflect conversion into U.S. dollars based upon the peso/dollar exchange ratio at close for such date (as reported by Bloomberg L.P.).

***		Open market purchases of ADSs on the NYSE in U.S. dollars.

Item 7. Material to Be Filed as Exhibits


Exhibit No.		Title
	1	Letter, dated March 18, 2011, from the Reporting Persons to the Nominations and Compensation Committee of the Issuer (without enclosure)

	2	Letter, dated March 30, 2011, from the Reporting Persons to the Nominations and Compensation Committee of the Issuer

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SIGNATURE

After reasonable inquiry and to the best their knowledge and belief, each of the undersigned certifies that the information set forth herein is true, complete and correct.

Dated as of: April 12, 2011


GRUPO MÉXICO, S.A.B. DE C.V.
By:	/s/ Daniel Muñiz Quintanilla
	Name:	Daniel Muñiz Quintanilla
	Title:	Chief Financial Officer

INFRAESTRUCTURA Y TRANSPORTES MÉXICO, S.A. DE C.V.
By:	/s/ Daniel Muñiz Quintanilla
	Name:	Daniel Muñiz Quintanilla
	Title:	Attorney-in-Fact

Page 7 of 11

Exhibit Index


Exhibit No.		Title
1		Letter, dated March 18, 2011, from the Reporting Persons to the Nominations and Compensation Committee of the Issuer (without enclosure)

2		Letter, dated March 30, 2011, from the Reporting Persons to the Nominations and Compensation Committee of the Issuer

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