Service difficulty report · Angle · Boeing 7378H4

Difficulty date
April 20, 2024
Submitted
May 23, 2024
Operation
Air carrier
Aircraft
N8573Z
Make and model
Boeing 7378H4
Aircraft serial
64250
Aircraft time
19,244 hours, 9,887 cycles
Part
Angle
Part number
UNKNOWN
Condition
Corroded
Location
Bs 767-787 Rbl21
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 COMPARTMENT STA 767 THRU STA 787 RBL 21 TRANSITION ANGLE HAS NUMEROUS CORROSION AREAS MARKED<[01] REMOVED CORROSION PER SRM 53-60-15-1A-1 (0.044' REMAINING THICKNESS). SHIELD (TRANSITION ANGLE) IS OUT OF LIMITS PER SRM 53-60-15-1A-1.;[02] DRILL AND COUNTERSUNK NEW SHIELD IAW SRM 51-40-05 AND SRM 51-40-08.;[03] NEED OK TO INSTALL NEW SHIELD.;[04] INSTALLED NEW TRANSITION ANGLE (SHIELD) IAW SRM 51-40-02.;[05] OKAY TO INSTALL NEW SHIELD.;[06] C/W C.A. STEP 4 (AMT T. GEBREMARIAM) OF THE INSTALLATION OF NEW TRANSITION ANGLE (SHIELD) AT STA 767 THRU STA 787 RBL 21. RII

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