30
SAFIR 5L
OPERATION AND ATTENDANCE MANUAL
PG 01-31
Time-limits of Activity – Technical Resource
After the period of operation specified of Table No.1, it is necessary to dismount the APU devices listed below and
to ship them to a specialized machine shop or plant to perform a complete overhaul (GO).
Table No. 1.
Devices Name
LUN/ Part Number
Technical Resource to GO
Number of
APU
actuations
Number
years of
operation
in airplane
Number of
hours of
APU
operation
APU (Air Generator)
490100.02
2000
8
300
Electric-Starter with Clutch
490110.01
2000
8
300
Oil Pump
LUN 6320-8
2000
8
300
Oil Filter
490131.01
2000
8
300
Electromagnetic Fuel Valve
LUN 2475-8
2000
8
300
Fuel Pump
490720.01
2000
8
300
Block of Filter and Servo
490740.01
2000
8
300
Return Fuel Filter
LUN 7616-8
2000
8
300
Control Box
LUN 3594.04
2000
8
300
Ignition exciter
81550.01
2000
8
300
Interconnecting Conductor
490510.01
2000
8
300
Ignition Plug
85500.11
1000
4
150
Temperature Transmitter
LUN 1371.01-8
2000
8
300
Anti-surge valve
490330.03
2000
8
300
Speed Transmitter
LUN 1326.03-8
2000
8
300
Electromagnetic Valve
486611.01
2000
8
300
Drainage Valve DV I
81175.01
2000
8
300
Drainage Valve DV II
81178.01
2000
8
300
Relief Valve
86626.01
2000
8
300
Note: Resource of APU and accessory devices, exclusive of the ignition plug, is 2000 actuations or 300 hours of
APU operation or 8 years of operation on an airplane. The total time until the complete overhaul, including
storage and handling time, must not exceed 10 years.
Scope of Periodic Work
A brief description and sequence of operations for the individual types of periodic work is listed in Table No.2 and
2A. A detailed description of more complex items of work is given in Article 4.8 – Checking Techniques.