TM 1-1520-238-23
Change 1
13-5
13.1.
ENVIRONMENTAL CONTROL SYSTEM (ECS) INSPECTION - continued
h. Check connectors for loose or bent pins, thread damage, and for frayed, cut, or loose wires
(TM 55-1500-323-24).
i. Check connector operation for smooth positive locking action (TM 55-1500-323-24).
j. Check general mounting hardware for cracks, gouges, nicks, scratches, chafing, damage, rounded
flats, and stripped or damaged threads. Replace damaged hardware.
k. Check environmental control unit (ENCU) for fluid leaks, cracks, and loose or missing hardware. None
allowed.
l. Check ENCU for chafing on fire extinguisher tubing. Minimum clearance between ENCU and tubing 0.25
INCH (para 12.33).
m. Check pilot ECS control panel and CPG AUX panel for loose knobs and switches. None allowed.
n. Inspect ENCU filter (if installed) for damage and cleanliness. Replace or clean filter as necessary (para
13.12).
o. Check ECS shutoff valve body for dents or cracks. None allowed.
p. Check ECS shutoff valve for scored, cracked, or distorted flanges. None allowed.
q. Check identification plate for legibility, deformation, and security of attachment.
r. Check cooling turbine for evidence of oil leakage, impeller contact in fan outlet, and metal debris in and
around fan outlet. None allowed.
s. Check cooling turbine for cracked or broken ports and flanges. None allowed.
END OF TASK
