Electrical power is restored (from either generator)

TM-1-1520-240-CL Army CH-47D Heilcopter (EIC:RCD) Manual
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TM 1-1520-240-CL E-11 4. PDP’s — Check circuit breakers and place gang bar down. 5. Each GEN switch — OFF RESET, then ON. Electrical power is restored (from either generator): Land as soon as possible. Electrical power is not restored: 1. APU — Start. 2. APU GEN — ON. 3. Land as soon as possible. NO. 1 or NO. 2 RECT OFF Caution DC bus tie has not occurred: Land as soon as possible. DC bus tie has occurred (only the RECT OFF caution will be on): 1. PDP’s — Check. 2. Land as soon as practicable. NO. 1 and NO. 2 RECT OFF Cautions If both transformer rectifiers fail, perform the following: 1. Land as soon as possible. 2. 712 EMER ENG TRIM — Adjust. If unable to land, proceed as follows: 1. Airspeed — below 100 KIAS. 2. Altitude — below 6000 feet PA.. 3. AFCS — OFF. 4. PDP’s — Check circuit breakers in. 5. DC Crosstie circuit breakers on both No. 1 and No. 2 PDPs — Pull out. 6. DC Equipment — OFF or pull out circuit breakers. 7. Land as soon as possible.

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