Boeing 747 - Page 95

REFER TO TABLE 1 FOR THE CORRECT LOCATION OF THE SIGNALS
DIAGONAL BRACE
BUSHING/FUSE
PIN WITH INSERT
REMOVED
TRANSDUCER
GUIDE
60%
40%
20%
80%
100%
10 0
8
6
2
4
TRANSDUCER
ADJACENT STRUCTURE IS NOT SHOWN
INITIAL PULSE SIGNAL
NOTES:
_____
TRANSDUCER INSPECTION AREA
BACK
SURFACE SIGNAL. THE LOCATION OF THE BACK SURFACE SIGNAL
WILL CHANGE WHEN FUSE PINS OF DIFFERENT LENGTHS ARE EXAMINED.
MONITOR THE AREA BETWEEN 42% AND THE BACK SURFACE SIGNAL
OCCUR IN THIS RANGE - IGNORE THESE SIGNALS
IT IS POSSIBLE THAT INTERNAL REFLECTIONS WILL
FOR EACH FUSE PIN PART NUMBER
4
3
4
1
2
2
3
1
4
ON
OFF
10P
10N
0
0
20 40
60
E
D
U
A
+5
+1
2.25
5
1
OFF
P
/
4 6 8
10
20
0
2
4
6
8
10
%
2131088 S0000459199_V1
Fuse Pin Inspection Area
Figure 9
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-10
Page 15
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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