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**AURORA      LOAN SERVICES**

**A      Lehman Brothers Company**

**Certification      Regarding Compliance with Applicable Servicing Criteria**

| 1.   | Aurora                  Loan Services LLC ("Aurora"), a wholly-owned subsidiary of Lehman                  Brothers                  Bank FSB, is responsible for assessing compliance with the servicing                  criteria applicable to it under paragraph (d) of Item 1122 of Regulation                  AB, as of and for the 12-month period ended December 31, 2006 (the                  ''Reporting Period"), as set forth in Appendix A hereto. The transactions                  covered by this** **report                  (these transactions collectively referred to as the "Master Servicing                  Platform") include asset-backed securities transactions for which                  Aurora                  acted as** **master                  servicer, registered on or after January 1, 2006, involving residential                  mortgage loans; |
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| 2.   | Aurora                  has not engaged vendors (the "Vendors") to perform significant                  activities                  pertaining to the applicable servicing                  criteria; |
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| 3.   | Except                  as set forth in paragraph 4 below, Aurora used the criteria set                  forth in                  paragraph (d) of Item 1122 of Regulation AB to assess the compliance                  with                  the applicable servicing criteria; |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | The                  criteria listed in the column titled "Inapplicable Servicing Criteria"                  on                  Appendix A hereto are inapplicable to Aurora based on the activities                  it                  performs with respect to the Master Servicing Platform as of December                  31,                  2006 and for the Reporting Period; |
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| 5.   | Aurora                  has complied, in all material respects, with the applicable servicing                  criteria as of December 31, 2006 and for the Reporting Period with                  respect to the Master Servicing Platform taken as a                  whole; |
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| 6.   | Ernst                  & Young LLP, an independent registered public accounting firm, has                  issued an attestation report on Aurora's assessment of compliance                  with the                  applicable servicing criteria as of December 31, 2006 and for the                  Reporting Period. |
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|   | Aurora                Loan Services LLC                  |
|--------|----------------------------------------------------------|
|   |                                                     |   |   |
|   |                                                     |   |   |
|   | By:                /s/                E. Todd Whittemore |
|   |                                                     | Name: | E.                Todd Whittemore |
|   |                                                     | Title: | Executive Vice                President |

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**APPENDIX      A**

| **SERVICING                CRITERIA**                   | **APPLICABLE****SERVICING                CRITERIA**                                                                                                                                                                                                                                                                                                                                                                                                                           | **INAPPLICABLE****SERVICING                CRITERIA**             |
|---------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|
|        **Reference** |        **Criteria**                                                                                                                                                                                                                                                                                                                                                                                                                        |     **Performed****Directly****by****Aurora** |    **Performed                by Vendor(s) for which Aurora****is                the Responsible****Party** | **Performed                by****subservicer(s)****or                vendor(s)****for                which****Aurora                is****NOT                the Responsible****Party** |   |
| **General                Servicing Considerations**     |
| 1122(d)(l)(i)                                           | Policies                and procedures are instituted to monitor any performance or other                triggers                and events of default in accordance                with the transaction documents.                                                                                                                                                                                                                                                           | X                                                                 |   |   |   |
| 1122(d)(l)(ii)                                          | If                any material servicing activities are outsourced to third parties,                policies and procedures are instituted to monitor the third                party's performance and compliance with such servicing                activities.                                                                                                                                                                                                              |                                                              |   |   | X1  |
| 1122(d)(l)(iii)                                         | Any                requirements in the transaction agreements to maintain a back-up                servicer for the pool assets are maintained.                                                                                                                                                                                                                                                                                                                               |                                                              |   |   | X1 |
| 1122(d)(l)(iv)                                          | A                fidelity bond and errors and omissions policy is in effect on the                party                participating in the servicing function throughout the reporting                period in the amount of coverage required by and otherwise                in accordance with the terms of the transaction agreements.                                                                                                                                  | X                                                                 |   |   |   |
| **Cash                Collection and Administration**   |
| 1122(d)(2)(i)                                           | Payments                on pool assess are deposited into the appropriate custodial bank                accounts                and related bank clearing accounts no more than two business days                of                receipt, or* *such                other number of                days specified in the transaction agreements.                                                                                                                        | X                                                                 |   |   |   |
| 1122(d)(2)(ii)                                          | Disbursements                made via wire transfer on behalf of an obligor or                to an investor are made only by authorized personnel.                                                                                                                                                                                                                                                                                                                           | X                                                                 |   |   |   |
| 1122(d)(2)(iii)                                         | Advances                of funds or guarantees regarding collections, cash flows                or                distributions, and any interest or other fees charged for                such advances, are made, reviewed and approved as specified in the                transaction agreements.                                                                                                                                                                          |                                                              |   |   | X1 |
| 1122(d)(2)(iv)                                          | The                related accounts for the transaction, such as cash reserve accounts                or amounts established as a form of overcollateralization,                are separately maintained (e.g., with respect                to commingling of cash) as set forth in the transaction                agreements.                                                                                                                                               | X                                                                 |   |   |  |
| 1122(d)(2)(v)                                           | Each                custodial account is maintained at a federally insured depository                institution as set forth in the transaction agreements.                For purposes of this criterion, “federally insured depository                institution” with respect to a foreign financial institution                means a foreign financial institution that meets the requirements                of § 240.13k-l (b)(1) of this chapter. | X                                                                 |   |   |   |
| 1122(d)(2)(vi)                                          | Unissued                checks are safeguarded so as to prevent unauthorized                access.                                                                                                                                                                                                                                                                                                                                                                           |                                                              |   |   | X1 |

** **

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| **SERVICING                CRITERIA**                   | **APPLICABLE****SERVICING                CRITERIA**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | **INAPPLICABLE****SERVICING                CRITERIA**             |
|---------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|
|        **Reference** |        **Criteria**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |     **Performed****Directly****by****Aurora** |    **Performed                by Vendor(s) for which Aurora****is                the Responsible****Party** | **Performed                by****subservicer(s)****or                vendor(s)****for                which****Aurora                is****NOT                the Responsible****Party** |   |
| 1122(d)(2)(vii)                                         | Reconciliations                are prepared on a monthly basis for all asset-backed                securities related bank accounts, including custodial accounts                and related bank clearing accounts. These reconciliations:                (A) Are mathematically accurate; (B) Are prepared                within 30 calendar days after the bank statement cutoff                date, or such other number of days specified in the transaction                agreements; (C) Are reviewed and approved by someone                other than the person who prepared the reconciliation;                and (D) Contain explanations for reconciling items. These reconciling                items are resolved within 90 calendar days                of their original identification, or such other number of days                specified in the transaction agreements. | X                                                                 |   |   |   |
| **Investor                Remittances and Reporting**   |
| 1122(d)(3)(i)                                           | Reports                to investors, including those to be filed with the Commission, are                maintained in accordance with the transaction agreements and applicable                Commission requirements. Specifically, such reports: (A) Are prepared                in                accordance                with timeframes and other terms set forth in the transaction agreements;                (B) Provide information calculated is accordance                with the terms specified in the transaction agreements;                (C) Are filed with the Commission as required by its                rules and regulations; and (D) Agree with investors' or the trustee's                records as to the total unpaid principal balance and number of pool                assets                serviced by the servicer.                                       | X2,3                                                              |   |   | X2 |
| 1122(d)(3)(ii)                                          | Amounts                due to investors are allocated and remitted in accordance                with timeframes, distribution priority and other terms                set forth in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | X3                                                                |   |   |   |
| 1122(d)(3)(iii)                                         | Disbursements                made to an investor are posted within two business days to the servicer's                investor records, or such other number of days specified in the                transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | X3                                                                |   |   |   |
| 1122(d)(3)(iv)                                          | Amounts                remitted to investors per the investor reports agree with cancelled                cheeks, or other form of payment, or custodial bank                statements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | X3                                                           |   |   |   |
| **Pool                Asset Administration**            |
| 1122(d)(4)(i)                                           | Collateral                or security on pool assets is maintained as required by                the transaction agreements or related pool asset                documents.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                              |   |   | X |
| 1122(d)(4)(ii)                                          | Pool                assets and related documents are safeguarded as required by                the transaction agreements                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                              |   |   | X |
| 1122(d)(4)(iii)                                         | Any                additions, removals or substitutions to the asset pool are made,                reviewed and approved in accordance with any conditions                or requirements in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | X                                                                 |   |   |   |

** **

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| **SERVICING                CRITERIA**                   | **APPLICABLE****SERVICING                CRITERIA**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | **INAPPLICABLE****SERVICING                CRITERIA**             |
|---------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|
|        **Reference** |        **Criteria**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     **Performed****Directly****by****Aurora** |    **Performed                by Vendor(s) for which Aurora****is                the Responsible****Party** | **Performed                by****subservicer(s)****or                vendor(s)****for                which****Aurora                is****NOT                the Responsible****Party** |   |
| 1122(d)(4)(iv)                                          | Payments                on pool assets, including any payoffs, made in accordance                with the related pool asset documents are posted to                the applicable service's obligor records maintained no more                than two business days after receipt, or such other number                of days specified in the transaction agreements, and allocated to                principal, interest or other items (e.g., escrow) in accordance                with the related pool asset documents.                                                                                                                                                                                                                                |                                                              |   |   | X |
| 1122(d)(4)(v)                                           | The                serviecr's records regarding the pool assets agree with the servicer's                records with respect to an obligor's unpaid principal balance.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                              |   |   | X  |
| 1122(d)(4)(vi)                                          | Changes                with respect to the terms or status of an obligor's pool asset (e.g.,                loan                modifications or re-agings) are made, reviewed                and approved by authorized personnel in accordance with                the transaction agreements and related pool asset documents.                                                                                                                                                                                                                                                                                                                                                                                                                              |                                                              |   |   | X1  |
| 1122(d)(4)(vii)                                         | Loss                mitigation or recovery actions (e.g., forbearance plans, modifications                and deeds in lieu                of                foreclosure, foreclosures and                repossessions, as applicable) are initiated, conducted and concluded                in accordance with the timeframes or other requirements established                by the                transaction agreements                                                                                                                                                                                                                                                                                                                                  |                                                              |   |   | X1  |
| 1122(d)(4)(viii)                                        | Records                documenting collection efforts are maintained during the                period a pool asset is delinquent in accordance with the transaction                agreements. Such records are maintained on at least a monthly basis,                or                such other period specified in the transaction agreements, and describe                the entity's activities in monitoring delinquent pool assets including,                for example, phone calls, letters and payment rescheduling plans                incases                where delinquency is deemed temporary (e.g., illness or unemployment).                                                                                                           |                                                              |   |   | X  |
| 1122(d)(4)(ix)                                          | Adjustments                to interest rates or rates of return for pool assets with variable                rates                are computed based on the related pool asset                documents.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                              |   |   | X  |
| 1122(d)(4)(x)                                           | Regarding                any funds held in trust for an obligor (such as escrow                accounts): (A) Such funds are analyzed, in accordance with                the obligor's pool asset documents, on at least an annual basis,                or such                other period specified in the transaction agreements;                (B) Interest on such funds is paid, or credited, to obligors                in accordance with applicable pool asset documents and                state laws; and (C) Such funds are returned to the obligor within                30 calendar days of full repayment of the related pool asset,                or such other number of days specified in the transaction                agreements. |                                                              |   |   | X   |
| 1122(d)(4)(xi)                                          | Payments                male on behalf of an obligor (such as tax or insurance payments)                are made                on or before the related penalty or                expiration dates, as indicated on the appropriate bills or notices                for such payments, provided that such support has been                received by the servicer at least 30 calendar days prior to these                dates, or such other number of days specified in the transaction                agreements.                                                                                                                                                                                                                                        |                                                              |   |   | X  |
| 1122(d)(4)(xii)                                         | Any                late payment penalties in connection with any payment to be                made on behalf of an obligor are paid from the servicer's funds and                not                charged to the obligor, unless the late payment was                due to the obligor's error or omission.                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                              |   |   | X |

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| **SERVICING                CRITERIA**                   | **APPLICABLE****SERVICING                CRITERIA**                                                                                                                                                                                                                                  | **INAPPLICABLE****SERVICING                CRITERIA**             |
|---------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|
|        **Reference** |        **Criteria**                                                                                                                                                                                                                               |     **Performed****Directly****by****Aurora** |    **Performed                by Vendor(s) for which Aurora****is                the Responsible****Party** | **Performed                by****subservicer(s)****or                vendor(s)****for                which****Aurora                is****NOT                the Responsible****Party** |   |
| 1122(d)(4)(xiii)                                        | Disbursements                made on behalf of an obligor are posted within two business days                to the                obligor's records maintained by the servicer,                or such other number of days specified in the transaction                agreements. |                                                              |   |   | X  |
| 1122(d)(4)(xiv)                                         | Delinquencies,                charge-offs and uncollectible accounts are recognized                and recorded in accordance with the transaction                agreements.                                                                                                        | X                                                                 |   |   |   |
| 1122(d)(4)(xv)                                          | Any                external enhancement or other support identified in Item 1114(a)(1)                through (3) or Item 1115 of this Regulation AB, is maintained                as set forth in the transaction agreements.                                                       |                                                              |   |   | X |

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