TM 1-1520-238-23
5-16
Change 6
5.2.
MAIN ROTOR BLADE REPAIR CRITERIA – continued
NOTES:
1.
MAXIMUM 3 DEFECTS PER BLADE WITH A MINIMUM OF 18.0 INCHES BETWEEN DEFECTS.
2.
IF NO. 2 SPAR IS CRACKED, REPAIR IS AT DEPOT ONLY.
4.
ALL DIMENSIONS ARE IN INCHES.
5.
STATION 263 IS STATIC WICK LOCATION.
6.
REPAIRS APPLY TO BOTH UPPER AND LOWER SURFACES.
7.
MAXIMUM REPAIR IS 10 INCHES FOR SPAR TO SPAR DEBONDS LOCATED INBOARD OF 20.4 INCHES AS MEASURED FROM OUTBOARD
TIP END OF SPAR 1 TO 2 JOINT OR 26.5 INCHES AS MEASURED FROM OUTBOARD TIP END OF SPAR 2 TO 3 JOINT.
8.
MINIMUM REPAIR IS 3 INCHES.
9.
DEBONDING EXCEEDING THESE LIMITS IS REPAIRABLE AT DEPOT ONLY.
10.
MAXIMUM REPAIR FOR SPAR 1 TO 2 DEBOND IS 20.4 INCHES AS MEASURED FROM THE OUTBOARD TIP END OF THE SPAR TO SPAR
JOINT.
11.
MAXIMUM REPAIR FOR SPAR 2 TO 3 AND 3 TO 4 DEBONDS IS 26.5 INCHES AS MEASURED FROM THE OUTBOARD TIP END OF THE SPAR
TO SPAR JOINT.
M04-2118-3A
AREA
TYPE OF
DAMAGE
PARAGRAPH
TABLE 5-3. MISCELLANEOUS DAMAGE.
MAXIMUM
WITHOUT REPAIR
SEE TABLE 5-4
2
1
7
8
9
10
11
20.4
F.S. 263.0
26.5
DOUBLERS
SPARS
SPAR TIPS
NO. 2 SPAR TIP
AFT DOUBLER TIP
GLASS SKIN AREA
METALLIC TRAILING
EDGE
METALLIC TRAILING
EDGE
SPAR TO SPAR DEBOND
NO. 1 & NO. 3
SPAR DEBOND
DEBOND
DEBOND
CRACKS
CREASES
DOUBLER DAMAGE
NONE
NONE
NONE
NONE
NONE
NONE
3
5.7
5.7
5.7A
5.7
5.7
5.7
DEPOT ONLY
5.5
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