Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  MATTAI NAN
2. Date of Event Requiring Statement (Month/Day/Year)
11/02/2004
3. Issuer Name and Ticker or Trading Symbol
ROCKWELL COLLINS INC [COL]
(Last)
(First)
(Middle)
M/S 124-223, 400 COLLINS ROAD NE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr VP, Engineering and Tech
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CEDAR RAPIDS, IA 52498-0001
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 941.7728
I
By Savings Plan (1)
Common Stock 786.2691
I
By Savings Plan (2)
Common Stock 84.2028
I
By Spouse (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy) (3)   (4) 10/05/2008 Common Stock 2,899 $ 16.9669 D  
Employee Stock Option (Right to Buy) (3)   (4) 10/04/2009 Common Stock 1,610 $ 32.613 D  
Employee Stock Option (Right to Buy) (3)   (5) 10/04/2009 Common Stock 805 $ 32.613 D  
Employee Stock Option (Right to Buy) (3)   (4) 10/02/2010 Common Stock 5,796 $ 18.5972 D  
Employee Stock Option (Right to Buy) (6)   (4) 07/05/2011 Common Stock 20,000 $ 22.35 D  
Employee Stock Option (Right to Buy) (6)   (7) 09/11/2012 Common Stock 10,400 $ 20.97 D  
Employee Stock Option (Right to Buy) (6)   (8) 11/06/2013 Common Stock 10,400 $ 27.97 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
MATTAI NAN
M/S 124-223
400 COLLINS ROAD NE
CEDAR RAPIDS, IA 52498-0001
      Sr VP, Engineering and Tech  

Signatures

Nan Mattai 11/03/2004
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Shares represented by Company stock fund units under the Rockwell Collins, Inc. 2001 qualified savings plan based on information furnished by the Plan Administrator as of October 1, 2004.
(2) Shares represented by Company stock fund units under the Rockwell Automation, Inc. salaried retirement savings plan, based on information provided by the Plan Administrator as of October 1, 2004.
(3) Employee stock options granted pursuant to the Rockwell Collins, Inc. 2001 Stock Option Plan.
(4) The options vested in three substantially equal annual installments and are currently exercisable.
(5) Options become exercisable as to the total number of option shares on the date on which the closing price of shares are reported on the New York Stock Exchange--Composite Transactions shall have exceeded 150% of the Fair Market Value on October 4, 1999 for at least 20 consecutive trading days or if earlier on October 4, 2006.
(6) Employee stock options granted pursuant to the Rockwell Collins, Inc. 2001 Long-Term Incentives Plan.
(7) 6,933 shares are currently exercisable; 3,467 shares become exercisable on September 11, 2005.
(8) 3,466 shares become exercisable on November 6, 2004; 3,467 shares become exercisable on November 6, 2005; 3,467 shares become exercisable on November 6, 2006.

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