The original umbilical, 15km in length, was installed in 1992 and both electrical power channels were deteriorating with one of them at such a low level that it was unserviceable.
The air vice-marshal offers a two-page explanation of the problem trip, including the facts that the plane was not a Ministry of Defence aircraft and that it had been "unserviceable" when it landed.
It is shown that the effect of transverse strains of the interlayer on displacements and stresses cannot be neglected for thick beams and the common quasi-elastic interlayer model is unserviceable for beams with viscoelastic interlayer with the repeatedly loading-unloading path.
This debt is unserviceable by many people.
The Hudson evaded the Bf 110, but its ASV equipment was unserviceable.
No. 4 was unserviceable when it arrived, but John Alcock, the chairman of the Hunslet Engine Company, was a member of the Preservation Society and had No. 4 overhauled free of charge at his works.
Of the Far East Command's 18,000 jeeps, 10,000 were unserviceable; of its 113,870 2½-ton 6x6 trucks, only 4,441 were serviceable.
On the other hand, our current debt levels are unserviceable and unsustainable.
The air force has about 220 aircraft and helicopters, a number of which are unserviceable.
In emergency and crisis situations, many communication channels can be unserviceable because of damage to equipment or loss of power.
Due to the high contrast in mechanical properties and geometric dimensions of constituting materials, classical structural analysis methods for such rather slender structures are unserviceable, what emphasises the necessity of alternative approaches.
