Service difficulty report · Angle · Boeing 7378H4

Difficulty date
July 3, 2023
Submitted
August 1, 2023
Operation
Air carrier
Aircraft
N8544Z
Make and model
Boeing 7378H4
Aircraft serial
36926
Aircraft time
19,891 hours, 9,804 cycles
Part
Angle
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFT CARGO RT. TRANSITION ANGLE HAS CORROSION AROUND FASTENER HOLE BS727E<[01] REMOVED LIGHT SURFACE CORROSION AFT CARGO R/H TRANSITION ANGLE FROM STA. 727E PER SRM 51-10-02; FOUND TO BE OUT OF LIMITS. MATERIAL REMOVED .005 AND REMAINING THICKNESS .035 PER SRM 53-00-53-1A-2.;[02] FOR COMPANY CONVENIENCE R/H TRANSITION ANGLE TO BE REPAIR FROM STATION 727+4 TO 767.;[03] VERIFIED C/A # 1 : (TECHNICIAN); 06-JUL-2023 20:40 UTC<BR>REMOVED LIGHT SURFACE CORROSION AFT CARGO R/H TRANSITION ANGLE FROM STA. 727E PER SRM 51-10-02; FOUND TO BE OUT OF LIMITS. MATERIAL REMOVED .005 AND REMAINING THICKNESS .035 PER SRM 53-00-53-1A-2.;[04] VERIFIED C/A # 2 : (TECHNICIAN); 06-JUL-2023 22:48 UTC<BR>FOR COMPANY CONVENIENCE R/H TRANSITION ANGLE TO BE REPAIR FROM STATION 727+4 TO 767.;[05] LOCATED AND DRILLED AND COUNTERSUNK NEW -52 TRANSITION ANGLE FROM STA 727+4 - 767 PER SRM 51-40-05 AND SRM 51-40-08. TREATED AND PRIMED PER SRM 51-20-01 AND SOPM 20-41-02;[06] CW;[07] INSTALLED NEW -52 TRANSITION ANGLE FROM STA. 727+4 - 767 PER SRM 51-40-02;[08] CW

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