Inspection and Maintenance - Decreasing Fuel Consumption and Exhaust Gas Emissions in Transportation - page 196

Fig. 13.7 Increasing fuel
consumption of jet engines
depending on flight cycles

, , , , , , ,

The erosive agents damage a turbine engine's performance, lead to thermal
deformations, increasing splits and decreasing efficiency. A new erosion-resistant
nano coating is benefitting both of these sectors in significant ways [ 34 ].
However, due to the high load of turbines' blades, deteriorations are natural
processes and continuously impact fuel consumption, CO 2 and pollutant emissions
in the exhaust gas. New development results, electronic monitoring and Self
Diagnosis of the combustion process are gaining increasing importance because of
the growing complexity of engine system technology.

13.4 Commander's Responsibility

Before any departure, there is a visual check of the airplane's outer surface and
parts for damage, leaks, missing parts and an inside check that the aircraft systems
are functioning properly. Furthermore, crew have to study the documents on
previous maintenance activities and maintenance related crew reports filed in the
operator's on-board technical flight log, i.e., the Airplane Flight Log (AFL) and the
Deferred Item Record (DIR) [ 35 ].
The decision to ''go''/''not go'' is aided by the manuals Minimum Equipment
List (MEL) and Configuration Deviation List (CDL) concerning those missing or
inoperable minor items and related actions to be followed which can be tolerated
for a short period of time without compromising safety [ 36 , 37 ].

13.5 Inspection and Maintenance in Ships

Maintenance means the combination of all technical and administrative measures
during the whole life time of a ship. The most important measures are checking the
systems, investigating errors and repairing or replacing defective modules (see
Table 13.6 )[ 38 ].