NEW YORK (Standard&Poor's) July 23, 2009--Standard&Poor's Ratings Services today assigned its 'A+' rating to Boeing Co.'s proposed offering of $1.5 billion senior notes and placed the rating on CreditWatch with negative implications. We expect that Boeing will issue three tranches of notes with maturities in 2015, 2020, and 2040. The company will issue the notes as a drawdown on the company's existing rule 415 unlimited shelf registration and will use the proceeds for general corporate purposes. Our long-term ratings on Boeing remain on CreditWatch, where we placed them with negative implications on April 10, 2009. The 'A-1' short-term rating is not on CreditWatch. We would most likely limit any lowering of the long-term ratings to one