AFI 11-2C-130v3 - BITS
AFI 11-2C-130v3 - BITS
AFI 11-2C-130v3 - BITS
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176 <strong>AFI</strong><strong>11</strong>-<strong>2C</strong>-130V3 23 APRIL 2012<br />
12.10.3.3.4. Reconnect the INS Battery connector<br />
12.10.3.3.5. Check the DC voltmeter in the ESS DC BUS position to verify the bus is<br />
powered.<br />
12.10.3.3.5.1. If the ESS DC BUS is not powered, bypass the relay as follows:<br />
12.10.3.3.5.1.1. Remove all power from the aircraft.<br />
12.10.3.3.5.1.2. Disconnect the INS battery.<br />
12.10.3.3.5.1.3. Bypass the INS RCR by installing a #4 jumper wire from the<br />
GEN terminal to the BAT terminal of the reverse current relay. (See Figure<br />
12.<strong>11</strong>)<br />
12.10.3.3.5.1.4. Connect the INS battery.<br />
12.10.3.3.6. Start GTC/APU. WARNING: Fire protection is not available for the<br />
GTC/APU, until the Battery Relay is jumped.<br />
12.10.3.3.6.1. Place Bleed Air Valve switch to OPEN (airplanes with ATM).<br />
12.10.3.3.7. Place ATM and generator/APU generator switch to ON. Check Voltage<br />
and Frequency.<br />
12.10.3.3.8. Remove #10 jumper wire from the INS RCR.<br />
12.10.3.3.9. Jump the battery relay using Failed Battery Relay procedure. (See<br />
paragraph 12.10.3.5) WARNING: If the INS RCR has been bypassed by<br />
installing the #4 jumper wire, neither the ISOLATED DC bus nor the ESSENTIAL<br />
DC bus can be isolated using bus isolation procedures in the flight manual.<br />
12.10.3.4. Failed RCR between Isolated and Essential DC Bus. WARNING: When<br />
performing maintenance inside any circuit breaker panel all aircraft power must be<br />
removed to prevent injury to personnel or equipment.<br />
12.10.3.4.1. Remove External Power and disconnect both the Aircraft and INS/SCNS<br />
batteries.<br />
12.10.3.4.2. Open pilot‘s side circuit breaker panel.<br />
12.10.3.4.3. Install a #10 jumper wire between the SW post and the APP post (see<br />
Figure 12.2).<br />
12.10.3.4.4. If the RCR fails to energize, bypass the relay as follows:<br />
12.10.3.4.4.1. Remove all power from the aircraft.<br />
12.10.3.4.4.2. Disconnect the aircraft battery.<br />
12.10.3.4.4.3. Install a #4 jumper wire between the BATT and GEN terminals<br />
(see Figure 12.2).<br />
12.10.3.4.4.4. Connect the aircraft battery. WARNING: The Essential DC bus<br />
cannot be isolated using bus isolation procedures contained in the flight manual.<br />
NOTE: When the #4 jumper wire is used on the RCR, the Iso DC on Batt/Batt<br />
Disc light will remain ON, even though the Essential DC bus is powering the<br />
Isolated Bus.
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