J.P. Instruments EDM 930 Primary Instructions for Continued Airworthiness User Manual
Page 5
EDM-900/930 Instructions for Continued Airworthiness Rev E
Date 5-24-2014 Page 5 of 6
4.0 Control & Operation Information
All of the engine and aircraft functions monitored by the EDM-900/930 are displayed on the
Display Unit after power-up. There are no other display screens.
Fuel Level calibration is performed during the initial installation of the EDM-900/930 and
should not require recalibration. Changing or repairing the EDM-900/930 display will not
affect fuel level calibration. However, if a fuel probe is replaced, fuel level calibration will be
required.
To calibrate the fuel level for a specific fuel tank, see section 22.4 in the
installation Report 908.
5.0 Airworthiness Limitations
There are no new or additional airworthiness limitations with installation of the EDM-900/930
system.
The Airworthiness Limitations section is FAA approved and specifies maintenance
required under Sections. 43.16 and 91.403 of the Federal Aviation Regulations, unless an
alternative program has been FAA approved.
6.0 Interior Placards
There are no markings or placards required in conjunction with the EDM-900/930 System.
7.0 Charts and Wiring Diagrams
All installation diagrams, schematics and charts are located in the EDM-900/930 Installation
Instructions (Report 908).
8.0 Overhaul Time Limits
The EDM-900/930 system and accessories have no overhaul time limits.
9.0 Maintenance Instructions
Maintenance checks should be performed every 100 hour and/or at the annual inspection.
Check all system components for the following: leaks on or around transducers, loose fittings,
chafing and/or breakage of any cables or wires and loose connections. Probes must be
checked for proper installation. This includes checking all hose clamps and fittings for security.
Verify that the unit is operating and functioning properly by performing the appropriate
procedures in Sections of the EDM-900/930 Installation Instructions (Report 908). On
pressurized aircraft, check the sealant for security where the serial wires pass through the
pressure bulkhead to the Display Unit.
10.0 Protective Treatment
There are no applications of protective treatments required for the EDM-900/930 system and its
components.