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NO. 1 ENGINE AREA (LOWER SECTION) (Cont)
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TM-55-1520-240-PMD CH-47D Helicopter Manual
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NO. 2 ENGINE AREA (UPPER SECTION)
Seq .
Seq.
No.
Item and Procedure
No.
Item and Procedur e
NO.2 ENGINE AREA (LOWER SECTION)
8.4
Lines and hoses throughout the area for leaks, chafing, and
security, including quick disconnect shelf.
NOTE
8.5
Engine area and accessories for leaks, damage, and security.
With engine air particle separators (EAPS) installed, it is not
necessar y to inspect the engine air inlet nor is it necessar y
8.6
Main oil filter bypass indicator for extension. If extended,
to open the engine cowling dur ing the daily inspection. Use
perfor m corrective action, on helicopters (Without 74 ), IAW
a flashlight and inspect through the openings in the engine
TM 55-2840-254-23. On helicopters (With 74 ), IAW TM
cowling. All filter buttons are visible using a flashlight. It is
1-2840-265-23.
only necessary to slide EAPS forward every 25 flight hours
8.7
Fire detection system sensing elements throughout the area for
or whenever there is a suspected compressor stall, surge,
chafing, damage, and security.
signs of oil coming from inlet, or if other non-scheduled or
scheduled maintenance is required.
8.8
Forward/outboard mount, aft engine mount and drag link for
condition.
8.1
Engine inlet screen for cleanliness, cracks, damage, loose
hardware, and proper installation.
8.9
Engine cowling for security, closed and latched.
8.2
Engine inlet housing and ducts for cleanliness, foreign object
8.10
NVG light for condition.
damage, and debris. Visible area of compressor blades and
8.11
EAPS drive shaft cowling seal for security and condition.
stators for damage and foreign materials. On helicopters
(Without 7 4 ), refer to TM 55-2840-254-23. On helicopters (With
8.12
Scavenge duct for obstructions, damage and condition.
74 ), refer to TM 1-2840-265-23.
8.13
Scavenge fan impellers for visible damage, cracks and
8.3
In-line fuel filter bypass indicator for extension. If bypass has
obstructions.
occurred, inspect for contaminated fuel system. On helicopters
(Without 7 4 ), refer to TM 55-2840-254-23. On helicopters (With
8.14
EAPS attachment brackets for cracks, damage, security and
74 ), refer to TM 1-2840-265-23.
condition.
8.15
Attachment rails for security, cracks, damage and cleanliness.
"FOD REMINDER"
Check wo rk area for tools and par ts after completion o f maintenance and insp ection.
TM 55-1520-240-PMD
16

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