Inspecting the battery First we charge the battery (using the recommended constant potential type charger) at 28.2V for a 24V battery until the charge current stabilizes for one hour. Then we perform the capacity test. The battery temperature must be stabilized at 59 degrees or higher for at least 24 hours.
https://www.youtube.com/watch?v=BCLWIyVbubY
How do you inspect an aircraft battery?
Aircraft Battery Inspection
Inspect battery sump jar and lines for condition and security. Inspect battery terminals and quickly disconnect plugs and pins for evidence of corrosion, pitting, arcing, and burns. Clean as required. Inspect battery drain and vent lines for restriction, deterioration, and security.
How will you know if the battery is charging aviation?
Do your battery charging at a slower rate and do not allow the battery to get too warm to the touch of your hand. You know the battery is fully charged when its specific gravity measures 1.240 or above with a hydrometer. If you are using a lead-acid battery you should invest in a good hydrometer.
How do you charge an aircraft battery?
Constant Voltage Charging
An electric generator is connected via the electrical bus to the battery. When using a constant-voltage system in a maintenance shop, a voltage regulator automatically maintains a constant voltage. This is the preferred method to charge lead-acid batteries.
What is aircraft inspection?
When flight hours and calendar time are accumulated into the life of an aircraft, some components wear out and others deteriorate. Inspections are developed to find these items, and repair or replace them before they affect the airworthiness of the aircraft.
What inspections are required on your aircraft?
Technical Information
- Annual Inspection (FAR 91.409) Most general aviation aircraft require an annual inspection.
- 100-Hour Inspection (FAR 91.409)
- Progressive Inspections (FAR 91.409)
- Items Checked During Inspections (FAR 43)
- Altimeter (FAR 91.411)
- Transponders (FAR 91.413)
- Emergency Locater Transmitter (FAR 91.207)
What is aircraft battery?
Aircraft batteries are used for many electrical functions, from the initial powering of the aircraft to a critical component of the electrical emergency systems. Aircraft batteries have a shelf life and will naturally discharge a small amount every day that it is either in storage or unused in the aircraft.
How do you maintain aircraft batteries?
The battery should be removed from the aircraft and put on a constant current top charge at the C/10 rate until all the cells have reached at least 1.55V each, and for the time specified in the maintenance instructions. This is when we adjust the electrolyte in each cell by adding distilled water as required.
What is the function of aircraft battery?
Batteries are used during preflight to power up the electrical system and to start the Auxiliary Power Unit and/or the engines. Once started, the APU or engine(s) drive generators which then power the electrical circuits and recharge the batteries.
What are the two charging methods used on aircraft batteries?
There are three common methods of charging a battery; constant voltage, constant current and a combination of constant voltage/constant current with or without a smart charging circuit.
What are the two effective methods of charging aircraft batteries?
The battery, while in service, is generally charged by one of two methods: 1) by direct electrical connection to the D.C. bus which in turn is supplied by a regulated/controlled “constant potential” source such as a D.C. generator, or 2) from a dedicated “constant current” source in a system whereby the battery
What determines the charging current for a battery when it is installed in the aircraft with constant voltage charging?
Battery state of charge is determined by the cumulative effect of charging and discharging the battery. In a normal electrical charging system, the aircraft generator or alternator restores a battery to full charge during a flight of 1 hour to 90 minutes.
What is aircraft electrical system?
Definition. An aircraft electrical system is a self contained network of components that generate, transmit, distribute, utilize and store electrical energy.
How long does it take to charge an airplane battery?
If your aircraft battery is rated at 35 ampere-hours and it is fully discharged, it will take about 12 hours to charge it to full capacity at a 3-amp charge rate. Patience is a virtue here: Charging the battery at a substantially faster rate may be hazardous to its health.
What is an inspection checklist?
An inspection checklist is the basic inspection component you use to note and record health and safety inspections. Each inspection checklist is specific to an inspection process; for example, a ladder checklist will contain details specific to inspecting a ladder.
Why do we need aircraft inspections?
The aircraft inspection process is key to the proper performance and airworthiness of any aircraft. Without proper inspections, aircraft are like to run with less effectiveness and to have components and parts that wear down easily and break down in a jam.
Why do aircraft requires routine inspection & maintenance?
All aircraft need periodic inspections and maintenance in order to ensure they are airworthy and safe to fly. Some of that maintenance is pre-scheduled and known to both the pilot and aircraft technician.
What required inspections must be performed to maintain an airworthy aircraft?
You must now complete a 100-hour inspection under 14 CFR 91.409. You can overfly this 100-hour limit by up to 10 hours, but only to reposition the aircraft for its required 100-hour inspection. An annual inspection can be completed instead of a 100-hour inspection.
What are two required aircraft inspections?
There are two main aircraft maintenance inspections required for Part 91 aircraft: the annual and 100 hour inspections. Whether you do both or only one depends on if you carry any passengers for hire. Both inspections cover the same items.
What is inspection and its types?
There are three primary types of quality inspections: pre-production, in-line, and final. There are a variety of details that must be inspected and approved during each phase in order to detect and correct quality problems.
What are the three main purposes of an aircraft battery?
Aircraft batteries are used for many functions (e.g., ground power, emergency power, improving DC bus stability, and fault clearing).
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