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CLASSIFICATION OF FUSELAGE DAMAGE AND TYPES OF REPAIR – continued | Up
TM-1-1520-238-23-2 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual | Next
CLASSIFICATION OF FUSELAGE DAMAGE AND TYPES OF REPAIR – continued |
TM 1-1520-238-23
2-44
Change 4
2.12.
CLASSIFICATION OF FUSELAGE DAMAGE AND TYPES OF REPAIR – continued
Category
Action
Limits
p. Kevlar/Epoxy Fairings Cracks
B
No longer than 25 PERCENT of shortest
skin dimension.
Repair (para 2.30).
C
Exceeds B or extends from one end of
part through other end.
Replace.
q. Kevlar/Epoxy Fairings Erosion
B
Any broken resin or exposed fibers.
Repair (para 2.30).
r. Repair seal on armor side panel.
A
Cracks, tears, punctures.
Replace.
s. Boron Carbide Cracks (e.g., nontransparent barrier)
C
Any cracking.
Replace.
t. Area Weapon Support Structure (F.S. 91.7)
A
Single crack less than 0.75 INCH.
Repair (TM 1-1500-204-23).
B
Total of all cracks on one side of bulkhead
- less than 1.75 INCHES.
Repair (TM 1-1500-204-23).
Total of all cracks on bulkhead - less than
1.75 INCHES.
Repair (TM 1-1500-204-23).
Single crack greater than 0.75 INCH.
Ground helicopter until repaired.
Total of all cracks on one side of bulkhead
- greater than 1.75 INCHES.
Ground helicopter until repaired.
Total of all cracks on bulkhead - greater
than 1.75 INCHES.
Ground helicopter until repaired.
u. Fuselage Frame Assembly (F.S. 547.15) (includes attached stringers within 6 INCHES of attachment to this
frame.)
A
Single crack less than 1.50 INCHES.
Continue operation of helicopter -
INSPECT DAILY.
B
Any crack greater than A.
Contact local LAR Representative for
repair.
Any crack within 0.25 INCH of thin-to-thick
wall transition flange.
Contact local LAR Representative for
repair.
C
Greater than B.
Replace.
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