Duress
Mistake (common, unilateral, mutual)
Fraud
death
Failure of valve closure
One might need an aviation attorney if they were in an accident (or caused an accident) in an aircraft. If one is flying a plane and something goes wrong and it crashes, they need to think about wrongful death suits, as well as if the manufacturer of the plane is at fault for poor manufacturing or defective parts.
Two adjectives that might describe the Rush-Bagot Agreement of 1817 might be historical and conciliatory.
Might be a defective starter solenoid
no... in some circumstances it might be
For the cost of a new one, if you suspect it might be bad just replace it.
Defective shock absorber , broken spring
Jefferson's comments in 1801 about the agreement between Spain and France showed concern about how the agreement might affect U.S. foreign relations.Worrie about the debt owed to American citizens by France concern about how the agreement might affec u.s. Foreign relations
what circumstances might the president use a pocket veto
In this form of agreement, the contractor commits himself or herself to execute specified work for a stated "lump sum" or fixed amount. The lump sum might in some circumstances be adjustable on account of a rise or fall in the cost of labour and/or materials, or on account of any variation to the works at the request of the principal, or might include provisional allowances. But generally the contractor is not entitled to claim further money over the stated amount.
No, but, they might be dangerous in the right circumstances.