**Exhibit 12.2**

 

**NORTHWEST AIRLINES CORPORATION**

**(DEBTOR-IN-POSSESSION)**

 

**COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES**

**AND PREFERRED STOCK REQUIREMENTS**

**(Dollars in millions)**

 
| ** **                                                                    | ** ** | **Three months ended  March 31** | ** ** |
|-------------------------------------------------------------------------------|------------|----------------------------------|------------|
| ** **                                                                    | ** ** | **2006**                         | ** ** | **2005** | ** ** |
| **Earnings:**                                                                 | ** ** | ** **                       | ** ** | ** ** | ** ** |
| ** **                                                                    | ** ** | ** **                       | ** ** | ** ** | ** ** |
| Income (loss)  before income taxes and cumulative effect of accounting change |       | $                                | (1,104     | ) | $ | (455 | ) |
| Less: Income from less than 50% owned investees                               |       | 1                                |       | 3 |   |
| Add:                                                                          |       |                             |       |   |   |
| Rent expense  representative of interest (1)                                  |       | 49                               |       | 62 |   |
| Interest expense  net of capitalized interest (2)                             |       | 136                              |       | 144 |   |
| Amortization of  debt discount and expense                                    |       | 2                                |       | 7 |   |
| Amortization of  interest capitalized                                         |       | 2                                |       | 2 |   |
|                                                                          |       |                             |       |   |   |
| **Adjusted  earnings (loss)**                                                 | ** ** | $                                | (916       | ) | $ | (243 | ) |
|                                                                          |       |                             |       |   |   |
| **Fixed charges and preferred stock requirements:**                           | ** ** | ** **                       | ** ** | ** ** | ** ** |
| ** **                                                                    | ** ** | ** **                       | ** ** | ** ** | ** ** |
| Rent expense representative of interest (1)                                   |       | $                                | 49         |   | $ | 62 |   |
| Interest expense net of capitalized interest (2)                              |       | 136                              |       | 144 |   |
| Preferred stock requirements                                                  |       | —                           |       | 8 |   |
| Amortization of debt discount and expense                                     |       | 2                                |       | 7 |   |
| Capitalized interest                                                          |       | 2                                |       | 2 |   |
|                                                                          |       |                             |       |   |   |
| **Fixed  charges and preferred stock requirements**                           | ** ** | $                                | 189        |   | $ | 223 |   |
|                                                                          |       |                             |       |   |   |
| **Ratio  of earnings to fixed charges and preferred stock requirements**      |       | —                           |  (3)  | — |  (3) |

 

(1)   Calculated as one-third of rentals, which is consideredrepresentative of the interest factor.

 

(2)   Subsequent to its Chapter 11 filing, theCompany recorded post-petition interest expense on pre-petition  obligations only to the extent it believes theinterest will be paid during the bankruptcy proceeding or that it is probablethat the interest will be an allowed claim.

 

(3)   Earnings were inadequate to cover fixedcharges and preferred stock requirements by $1.1 billion and $466 million forthe three months ended March 31, 2006 and March 31, 2005, respectively.

 

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