Common use of Model Substitution Clause in Contracts

Model Substitution. 5.1 Model 737-724/-824 Aircraft. Buyer may elect to substitute Model 737-824 for Model 737-724 or Model 737-724 for Model 737-824 Aircraft for any Aircraft or Option Aircraft delivering in 1999 or later. Buyer's model substitution notice to Boeing must be in writing to Boeing no later than the first day of the tenth month prior to delivery of each Aircraft. 5.2 Model 737-624 Aircraft. Buyer may elect to substitute either Model 737-724 or 737-824 Aircraft for Model 737-624 Option Aircraft delivering in 2000 or later. Buyer's written model substitution notice must be received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft. 5.3 Model 737-524 Aircraft. Buyer may elect to substitute Model 737-324 for Model 737-524 Aircraft. Buyer's substitution notice must be in writing and received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft if Customer and Boeing have previously agreed on a configuration for the Model 737-324. If configuration for the Model 737-324 has not been established, than the notice period shall be the time required to configure the Model 737-324 plus 10 months. 5.4 Model 737-924 Aircraft. Buyer may elect to substitute Model 737-724, or Model 737-824 Aircraft for Model 737-924 Option Aircraft delivering in January 2003 or later. Buyer's written model substitution notice must be received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft.

Model Substitution. 5.1 Model 737-724/-824 Aircraft. Buyer may elect to substitute Model 737-824 for Model 737-724 or Model 737-724 for Model 737-824 Aircraft for any Aircraft or Option Aircraft delivering in 1999 or later. Buyer's model substitution notice to Boeing must be in writing to Boeing no later than the first day of the tenth month prior to delivery of each Aircraft. 5.2 Model 737-624 Aircraft. Buyer may elect to substitute either Model 737-724 or 737-824 Aircraft for Model 737-737- 624 Option Aircraft delivering in 2000 or later. Buyer's written model substitution notice must be received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft. 5.3 Model 737-524 Aircraft. Buyer may elect to substitute Model 737-324 for Model 737-524 Aircraft. Buyer's substitution notice must be in writing and received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft if Customer and Boeing have previously agreed on a configuration for the Model 737-324. If configuration for the Model 737-324 has not been established, than the notice period shall be the time required to configure the Model 737-324 plus 10 months. 5.4 Model 737-924 Aircraft. Buyer may elect to substitute Model 737-724, or Model 737-824 Aircraft for Model 737-924 Option Aircraft delivering in January 2003 or later. Buyer's written model substitution notice must be received by Boeing no later than the first day of the tenth month prior to delivery of each Aircraft.