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Table 2-6.  Operator/Crew Preventive Maintenance Checks and Services - TM-55-1560-307-13P_54
CHAPTER 3 MAINTENANCE INSTRUCTIONS - TM-55-1560-307-13P_56

TM-55-1560-307-13P AH-1E/F/P/S Helicopter Manual
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TM 55-1560-307-13&P Section VII.  OPERATION UNDER UNUSUAL CONDITIONS 2-21. OPERATION  IN  UNUSUAL  WEATHER .    The ERFS system can be installed and operated in climatic conditions that are acceptable to aircraft operations. WARNING Installing    the    non-crashworthy    ERFS increases the potential for thermal injuries during a crash sequence. Therefore,  the  number  of  personnel  on board   the   aircraft   will   be   kept   to   the minimum required to perform the required mission. Additionally, all personnel are required to be seated with a lap belt during flight. 2-22. EMERGENCY PROCEDURES.  The ERFS is a system  designed  with  redundant  capabilities  to  ensure system reliability in flight. a. In  the  event  of  an  inflight  fuel  leak  due  to  a manifold  seal  malfunction  the  dust  cover  seal  can  be used to replace the manifold seal. b. Leaks in the ERFS fuel manifold system can be isolated by using the coupling shutoff characteristics. c. Failure  of  pumps.    If  both  pumps  feeding  one side   of   the   aircraft   fail   (pumps   1   and   2),   use   these procedures: (1)   Place the override switch in the ON position. (2)   If  pumps  1  and  2  are  still  inoperative,  turn them OFF.  Continue pumping operations with pumps 3 and 4 until all ferry fuel is transferred.  Since fuel is only being    pumped    to    one    side    of    the    aircraft,    fuel management via the cross-feed method will be required. (3)   Repeat procedure in same manner if pumps 3 and 4 were to fail. d. If pump switch fails to stay ON in flight, check to see  that  the  FMCP  pump  circuit  breaker  is  in  and  turn the  override  switch  on.    If  the  pump  switch  still  fails  to stay   ON,   turn   the   effected   pump   OFF.      If   all   pump switches fail, abort mission. 2-35/(2-36 Blank)







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