Boeing 747 - Page 35

Table 1: Diagonal Brace - Calibration Information (Continued)
ENGINE
CONFIGURATION
FUSE PIN
*[1]
STRUT
*[2]
REFERENCE
STANDARD
(Figure 2
&
Figure 3)
TRANSDUCER
DIAMETER
IN. (MM)
GUIDE
NUMBER
Figure 4
REFERENCE
NOTCH BACK SURFACE
TRANSDUCER
POSITION
POSITION
OF
SIGNAL
%FSW
*[3]
TRANSDUCER
POSITION
POSITION
OF
SIGNAL
%FSW
*[3]
RB211
ALL
-5 I/B NDT4108 0.19 (4.8) NDT4108/
9-G3
D 13% E 70%
-12 O/B NDT4108 0.19 (4.8) NDT4108/
9-G4
F 19% G 83%
CF6-80
PW4000
-18 I/B NDT4108 0.19 (4.8) NDT4108/
9-G3
D 13% G 83%
-19 O/B NDT4107 0.14 (3.6)NDT4107-G5 C 19% D 87%
*[1]
BOEING PART NUMBER 69B90906
*[2]
I/B = INBOARD; O/B = OUTBOARD
*[3] POSITION OF THE SIGNAL AS A PERCENTAGE OF FULL SCREEN WIDTH
Table 2: Diagonal Brace - Fuse Pin Back Surface and Crack Signal Locations
ENGINE
CONFIGURATION
FUSE PIN
*[1]
STRUT
*[2]
FUSE PIN
BACK SURFACE SIGNAL CRACK LOCATION
*[3]
METAL DISTANCE
POSITION
%FSW
*[4]
METAL DISTANCE
POSITION
%FSW
*[4]
IN. MM IN. MM
JT9D-70 -10 I/B 3.13 79.5 63% 0.53 13.5 11%
-11 O/B 4.03 102.4 81% 0.95 24.1 19%
JT9D
(EXCEPT
-70)
-13 I/B 3.41 86.6 68% 0.65 16.5 13%
-6 O/B 3.53 89.7 71% 0.70 17.8 14%
CF6-45,
-50
-5 I/B 3.41 86.6 68% 0.65 16.5 13%
-6 O/B 3.53 89.7 71% 0.70 17.8 14%
RB211
ALL
-5 I/B 3.41 86.6 68% 0.65 16.5 13%
-12 O/B 4.03 102.4 81% 0.95 24.1 19%
CF6-80
PW4000
-18 I/B 4.15 105.4 83% 0.65 16.5 13%
-19 O/B 4.34 110.2 87% 0.95 24.1 19%
*[1]
BOEING PART NUMBER 69B90906
*[2]
I/B = INBOARD; O/B = OUTBOARD
*[3]
APPROXIMATE LOCATIONS WHERE WE THINK CRACKS WILL START. SEE Figure 1, FLAGNOTE 3.
*[4] POSITION OF THE SIGNAL AS A PERCENTAGE OF FULL SCREEN WIDTH
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-06
Page 5
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ALL