Service difficulty report · Shield · Boeing 7377H4

Difficulty date
August 11, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N755SA
Make and model
Boeing 7377H4
Aircraft serial
27871
Aircraft time
74,723 hours, 44,099 cycles
Part
Shield
Condition
Corroded
Location
Bs 500
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

CORROSION ON SHIELD IN FWD CARGO BAY AFT OF DOOR BS500 RBL 21 WL 156 ; / [01] UPDATED MEASUREMENTS TABLE; [02] EVALUATED CORROSION; 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 CORROSION OUT OF LIMITS AND PART TO BE REPLACED PER SRM 51-10-02; [04] REMOVED SHIELD BS 492-500A RBL 21; WL 156; PER SRM 51-40-02-0G-0.; [05] LOCATED AND DRILLED NEW SHIELD AT FCB BS492 TO BS500A RBL21 WL156 PER SRM 51-40-05-0G AND DWG 143A0080.; [06] VERIFIED LOCATE AND DRILL UP OF NEW SHIELD PER SRM 51-40-05 AND DWG 143A7902.; [07] EDIT TO DWG #; VERIFIED LOCATE AND DRILL UP OF NEW SHIELD PER SRM 51-40-05 AND DWG 143A0080.; [08] CERTIFIED EDIT TO DWG #.; [09] UPDATED PARTS TABLE; [10] OK TO INSTALL SHIELD; [11] OK TO INSTALL; [12] INSTALLED FWD CARGO BAY AFT OF DOOR SHIELD IAW SRM 51-40-02-0G-0;DWG # 143A0080; [13] VERIFIED INSTALLED FWD CARGO BAY AFT OF DOOR SHIELD IAW SRM 51-40-02-0G-0;DWG # 143A0080; [14] CORRECTED MEASUREMENT TABLE ORDER#20 SHOULD BE N/A NOT MAJOR; [15] CERTIFIED STEP 1 AND 14

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