TM 1-1520-238-23
1-372
Change 11
1.137.
SPECIAL INSPECTION CHECKLIST – continued
Helicopter Serial No.:
Date:
Area
No.
REQUIREMENT
EVERY
Item
Status
Special
Inspection
No.
2
7
25 HOURS/30 DAYS (WHICHEVER COMES FIRST)
Perform Preventive Maintenance Checks and Services (AVUM) on aircraft
battery BB-564 (TM 11-6140-203-23).
50 HOURS/30 DAYS (WHICHEVER COMES FIRST)
Perform Preventive Maintenance Checks and Services (AVUM) on aircraft
battery BB-664 (TM 11-6140-203-23).
ALL
8
CAUTION
Use of high pressure wash on any part of this aircraft is prohibited.
AIRCRAFT SHALL BE CLEANED/WASHED (PER TABLE I) EVERY 45 DAYS (para
1.49).
AIRCRAFT ENGAGED IN EXTENDED EXPOSURE OR LOW LEVEL OPERATIONS
OVER BRACKISH OR SALT WATER SHALL REQUIRE A FRESH WATER RINSE
(PER TABLE I) AT CONCLUSION OF EACH DAY’S OPERATION (para 1.53).
AIRCRAFT STATIONED WITHIN TWO MILES OF BRACKISH OR SALT WATER
SHALL REQUIRE A FRESH WATER RINSE EVERY 14 DAYS (para 1.53).
NOTE
A fresh water rinse is not to be considered as a substitute for the 45 day
cleaning/washing requirement.
ALL
9
IF AIRCRAFT HAS BEEN OPERATED WITHIN 200 MILES OF VOLCANIC
ACTIVITY
Water wash engine internally (TM 55-2840-248-23).
ALL
10
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