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TM 1-1520-248-CL - Army Aviation

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<strong>TM</strong> 1-<strong>1520</strong>-<strong>248</strong>-<strong>CL</strong><br />

11. START switch - Release by 55% NG.<br />

12. XMSN OIL pressure and ENG OIL<br />

pressure - Within limits.<br />

HIGH OIL TEMP ENG CAUTION MESSAGE<br />

1. Adjust helicopter heading into wind, or<br />

transition to forward flight.<br />

If engine oil temperature exceeds 120 °C (<strong>248</strong> °F),<br />

or if engine oil temperature exceeds 107 to 120 °C<br />

(224 to <strong>248</strong> °F) for more than 10 seconds:<br />

2. LAND AS SOON AS POSSIBLE.<br />

ROTORS, TRANSMISSIONS, AND<br />

DRIVE SYSTEMS MALFUNCTIONS<br />

MAIN DRIVESHAFT FAILURE<br />

1. AUTOROTATE - Throttle full open.<br />

2. EMER SHUTDOWN after landing.<br />

<strong>CL</strong>UTCH FAILS TO DISENGAGE<br />

1. Throttle - Open<br />

2. LAND AS SOON AS POSSIBLE.<br />

<strong>CL</strong>UTCH FAILS TO RE-ENGAGE<br />

FIRE<br />

1.<br />

2.<br />

ABORT START/HOT START/RESIDUAL<br />

FIRE<br />

1.<br />

AUTOROTATE.<br />

EMER SHUTDOWN.<br />

START switch - ON and hold until TGT<br />

is less than 200 °C.<br />

E-5

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