38A [Buyer's obligation to examine goods: time for examining goods];

39A [Requirement to notify seller of lack of conformity: buyer must notify seller within reasonable time];

71A ; 71C [Grounds for suspension of performance: apparent that a party will not perform substantial part of obligations; Obligations of party suspending performance: immediately notify other party];

73A1 [Avoidance in installment contracts (fundamental breach with respect to installment): need for declaration of avoidance with respect to defective installment]