Service difficulty report · Shield · Boeing 7378H4

Difficulty date
February 6, 2024
Submitted
March 4, 2024
Operation
Air carrier
Aircraft
N8563Z
Make and model
Boeing 7378H4
Aircraft serial
64172
Aircraft time
19,968 hours, 10,090 cycles
Part
Shield
Part number
UNKNOWN
Condition
Corroded
Location
Bs 747-792
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 BAY SHIELD HAS CORROSION BS 747-792 RBL 24 WL 156<[01] CORRECTION TO THE BS IN THE DISCREPANCY; SHOULD READ BS 767-792 RBL 24 WL 156;[02] EVALUATED CORROSION ON SHIELD BS 767 TO BS 792 RBL 24 WL 156; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;[03] VERIFIED CORRECTIVE ACTIONS STEP 2.;[04] EVALUATED; REMOVED DAMAGED SHIELD; LOCATED; DRILLED AND INSTALLED NEW SHIELD BS 747-792 RBL 24 WL 156 IAW SRM 51-10-02-0G-0; SRM 51-40-05-0G-0; SRM 51-40-02-0G-0 AND DWG 146A0081.;[05] VERIFIED CORRECTIVE ACTION 4 AND MEASUREMENT TABLE

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