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1-1  FAILURE  SYMPTOM  LIST
CHAPTER 5 (Continued)

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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1-1  FAILURE  SYMPTOM  LIST  (Continued) S Y M P T OM TASK CHAPTER 4 (Continued) ENGINE   START   AND   IGNITION   (Continued) NO.  2  ENGINE  DOES  NOT  MOTOR  (GAS PRODUCER   TACHOMETER   DOES   NOT INDICATE  10  TO  15%  N1) NO.  2  ENGINE  DOES  NOT  START  (ENGINE FUEL   SYSTEM   FAILURE) NO.  2  ENGINE  DOES  NOT  START  (ENGINE IGNITION   SYSTEM   FAILURE) NO.   2   ENGINE   MOTORS   NORMALLY   BUT DOES  NOT  START GAS   PRODUCER   CONTROL   SYSTEM   (N1) ENGINE  NO.  1  OR  NO.  2  COND  CONT CIRCUIT   BREAKER   WILL   NOT   STAY CLOSED NO.   1   ENGINE   FUEL   CONTROL   POINTER NOT   AT   GROUND   BAND NO.  1  ENGINE  CONT  CAPSULE  DOES  NOT COME  ON NO.  1  ENGINE  OR  NO.  2  ENGINE  FUEL CONTROL   POINTER   DOES   NOT   MAKE CONTACT  WITH  STOP  OR  BROWN  BAND  IS NOT   PARTIALLY   COVERED 4-4.4 4-4.4 4-4.4 4-4.4 4-5.3 4-5.3 4-5.3 4-5.3 NO.  1  OR  NO.  2  ENG  N1  CONT  CAPSULE  IS  LIT    4-5.3 NO.   2   ENGINE   FUEL   CONTROL   POINTER NOT   AT   GROUND   BAND NO.  2  ENGINE  N1  CONT  CAPSULE  DOES NOT  COME  ON POWER   TURBINE   CONTROL   SYSTEM   —   (N2) NO. 1 EM ERG ENG TRIM CIRCUIT BREAKER WILL  NOT  STAY  CLOSED NO.   1   ENGINE   TRIM   &   TIMER   CIRCUIT BREAKER   WILL   NOT   STAY   CLOSED NO.   1   ENGINE   TRIM   CIRCUIT   BREAKER WILL   NOT   STAY   CLOSED GO  TO  NEXT  PAGE Change 1 1-2.2 4-5.3 4-5.3 4-6.3 4-6.3 4-6.3 S Y M P T OM TASK NO.  1  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  OR  MOVES  BUT  STOPS OUTSIDE  OF  13°  TO  21°  ON  PROTRACTOR (DECREASE  SELECTED) NO.  1  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  COPILOT’S  NO.  1 ENGINE  BEEP  TRIM  SWITCH  SET  TO  RPM DECREASE NO.  1  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  COPILOT’S  NO.  1 ENGINE  BEEP  TRIM  SWITCH  SET  TO  RPM INCREASE NO.  1  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  EMERGENCY ENGINE  TRIM  1  SWITCH  SET  TO  DEC NO.  1  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  EMERGENCY ENGINE  TRIM  1  SWITCH  SET  TO  INC NO.  1  ENGINE  FUEL  CONTROL  POINTER  NOT BETWEEN  13°  AND  21°  ON  PROTRACTOR AT  BEGINNING  OF  OPERATIONAL  CHECK NO.  1  ENGINE  POWER  TURBINE  LEVER DOES  NOT  MOVE  OR  MOVES  BUT  DOES  NOT CONTACT  STOP NO.  2  EMERG  ENG  TRIM  CIRCUIT BREAKER   WILL   NOT   STAY   CLOSED NO.   2   ENGINE   TRIM   CIRCUIT   BREAKER WILL   NOT   STAY   CLOSED NO.   2   ENGINE   TRIM   &   TIMER   CIRCUIT BREAKER  WILL  NOT  STAY  CLOSED NO.  2  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  OR  MOVES  BUT  STOPS OUTSIDE  OF  13°  TO  21°  ON  PROTRACTOR (DECREASE  SELECTED) NO.  2  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  COPILOT’S  NO.  1 AND  2  ENGINE  BEEP  TRIM  SWITCH  SET  TO RPM  DECREASE 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 4-6.3 TM  55-1520-240-T 1-1 S Y M P T O M TASK NO.  2  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  COPILOT’S  NO.  1 AND  2  ENGINE  BEEP  TRIM  SWITCH  SET  TO RPM   INCREASE 4-6.3 NO.  2  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  EMERGENCY ENGINE  TRIM  2  SWITCH  SET  TO  DEC 4-6.3 NO.  2  ENGINE  FUEL  CONTROL  POINTER DOES  NOT  MOVE  WHEN  EMERGENCY ENGINE  TRIM  2  SWITCH  SET  TO  INC 4-6.3 NO.  2  ENGINE  FUEL  CONTROL  POINTER  NOT BETWEEN  13°  AND  210  ON  PROTRACTOR AT  BEGINNING  OF  OPERATIONAL  CHECK 4-6.3 NO.  2  ENGINE  POWER  TURBINE  LEVER DOES  NOT  MOVE  OR  MOVES  BUT  DOES  NOT CONTACT  STOP  (INCREASE  SELECTED) 4-6.3 ENGINE   ACCESSORY   GEARBOX   CHIP   DETECTORS ENG  CHIP  DET  CAPSULE  DOES  NOT  COME ON   AND   ENGINE   CHIP   DETECTOR INDICATOR   DOES   NOT   CHANGE DISPLAY  WHEN  DETECTOR  SHORTED 4-7.3 NO.  1  AND  NO.  2  ENGINE  CHIP  DETECTOR INDICATOR   DISPLAY   IS   ALL   BLACK WHEN  GND  SWITCH  SET  TO  TEST 4-7.3 NO.  1  ENG  CHIP  DET  CAPSULE  DOES  NOT COME  ON  WHEN  GND  SWITCH  SET  TO  TEST  4-7.3 NO.  1  OR  NO.  2  ENGINE  CHIP  DETECTOR INDICATOR   DISPLAYS   BLACK-AND WHITE   FAN,   ENG   CHIP   DET   CAPSULE   OUT   4-7.3 NO.  1  OR  NO.  2  ENG  CHIP  DET  CAPSULE IS   LIT 4-7.3 NO.  2  ENG  CHIP  DET  CAPSULE  DOES  NOT COME  ON  WHEN  GND  SWITCH  SET  TO  TEST  4-7.3 CHAPTER 5 ROTOR   BLADE   TRACKING   AND   BALANCING SYSTEM NO   FWD   LATERAL   OR   AFT   LATERAL INDICATION   ON   IPS   INDICATOR 5-2.3







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