Inspection and Maintenance Instructions for 7FA.05 Gas Onl
and Dual Fuel Gas Turbine
GEK 116862
A: Annual Inspection
HGP: Hot Gas Path Inspection
Maj: Major Overhaul Inspection
Yrs.: Years
O: Turbine Operating
S: Turbine Shutdown
The recommended inspection frequencies and turbine statuses, specified in this column, are
representative of an average power plant installation and include both peaking and continuous operating
stations. They are not intended to cover all variations of equipment supplied and may depend upon station
environment. (In some cases, a shutdown may be recommended solely as a precaution against possible
injury to maintenance personnel, because the location of the component or device is in a hazardous area.)
The “Reference” column, in the Inspection Schedule, refers to those pages in the text which provide
detailed inspection information on the device, assembly, or system under inspection. This column also
refers to publications, issued by the GE Company which supplements the information in the text. These
publications can be found under the system sections in the Operation and Maintenance Manual.
It is our intent that these instructions, with the help of a GE Field Service Representative, be used as an
aid in the preparation of an individual maintenance program for each purchaser.
Table 1. Periodic Inspection Schedule
Inspection What to Inspect for
Inspection
Frequency and
Turbine Status
Document
or Section
Reference
STANDARD MAINTENANCE ITEMS
INSTRUMENTATION
Pressure Switches
and Gauges Damage D — O
II. A.
Reading in Error D — O
Calibration A — S
Thermometers
(Dial Type) Damage D — O
II. B.
Reading in Error D — O
Calibration A — S
Flowmeters II. C.
Leaking Seams and Joints D — O
Calibration A — S
Vibration Detectors II. D.
Stable Reading D — O
Mounting Secure A — S
Liquid Level Indicators II. E.
Reading in Error D — O
High and Low Actuation Point A — S
Panel Meters II. F.
Damage D — O
© General Electric Company, 2011. GE Proprietary Information. All Rights Reserved.
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