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Task 7.1 – Monthly on “aircraft” check
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
Note: The battery can be inspected visually fitted in the aircraft
or alternatively removed and inspected on the airfield.
ATTENTION
Do not disconnect a battery whilst under load.
1. Remove the lid from the battery case.
Check the locks for defects, if the lid cannot be removed.
2. Check whether the interior battery is contaminated
with electrolyte.
Send battery to workshop.
3. Check the battery case and lid as well as connectors, pole nuts,
temperature sensor assembly for any mechanical and thermal
damages, as well as any signs of dents, cracks, splits, overheating,
short circuits, melting, burn down, dark spots and tarnish.
Any damage found, send battery to workshop.
4. Inspect the main connector for any damage caused by arcing,
faulty connection, corrosion, loose parts, cracks in the
connector casing.
Any damage found, send battery to workshop.
5.
Inspect harnesses, temperature switches, thermistors and
thermocouples for loose wiring, cracks, dents, connector
pins in place.
Any damage found, send battery to workshop.
6. Record in the battery log book whether the battery has passed
or failed.
7. Refit the lid on the battery case after the check.
7. Maintenance Tasks
Task 7.2 – Quarterly maintenance of airborne batteries
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
1. Remove the lid and check that the gasket is fully adhered
to the lid.
Any damage found, record defect and replace in accordance with
the Repair Task 10.6.
2. Inspect battery container and lid for any damages, signs of dents,
cracks, splits, overheating, short circuits, melting, dark spots and
tarnish.
Any damage found, record defect and replace in accordance with
Repair Task 10.6.
3. Inspect the main connector for signs of damage caused by arcing,
faulty connection, corrosion, loose parts and cracks in
the connector casing.
Any damage found, record defect and replace in accordance with
Repair Task 10.5.
CAUTION:
Mineral salts from spilled electrolyte are caustic. When cleaning
batteries and cells wear goggles and gloves; in addition wear dust
mask and ear protection when applying compressed air for
cleaning; the compressed air shall have a pressure below 3 bar.
4. Tighten any loose vent plugs and clean the top of the cells with
a plastic brush, and remove any remaining deposits with an oil-
free compressed air.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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