Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
Aircraft Services CORP
  2. Issuer Name and Ticker or Trading Symbol
Regency Energy Partners LP [(RGNC)]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Owner of General Partner
(Last)
(First)
(Middle)
120 LONG RIDGE ROAD
3. Date of Earliest Transaction (Month/Day/Year)
04/21/2008
(Street)

STAMFORD, CT 06927
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Units 04/21/2008   C(1)   4,701,034 A (1) 4,701,034 I (2) Through ASC Hugoton LLC

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Class E Common Units (1) (1) 04/21/2008   C     4,701,034   (1)   (1) Common Units 4,701,034 $ 0 (1) 0 I (2) Through ASC Hugoton LLC

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Aircraft Services CORP
120 LONG RIDGE ROAD
STAMFORD, CT 06927
    X   Owner of General Partner
EFS Regency GP Holdco II, LLC
120 LONG RIDGE ROAD
STAMFORD, CT 06927
      Managing Member
Regency LP Acquirer, L.P.
120 LONG RIDGE ROAD
STAMFORD, CT 06927
      General Partner

Signatures

 Tyson Yates   04/21/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) The Class E Units became convertible into common units on a one-for-one basis from and after February 15, 2008. On April 18, 2008, the reporting person converted 4,701,034 Class E Common Units, resulting in the issuance to the reporting person of 4,701,034 Regency Energy Partners LP common units.
(2) The Class E Common Units and Common Units reported hereby are owned by ASC Hugoton LLC. ASC Hugoton is wholly owned by Aircraft Services Corporation . The Joint Filers hereunder may be deemed to beneficially own the Common Units reported hereby by virtue of their membership in a group with the other Joint Filers. The Reporting Persons disclaim beneficial ownership of the Common Units except to the extent of their pecuniary interest therein and this report shall not be deemed an admission that the Reporting Persons are beneficial owners of the Reported Securities.

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