Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
August 10, 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
Doubler
Condition
Corroded
Location
Bs 500a
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 DOUBLER AT FWD CARGO BAY BS500A+12 BL0 WL148. ; / [01] 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; [02] VERIFIED 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] REMOVED DOUBLER AT FWD CARGO BAY; BS 500A +12; BL0; WL 148 PER SRM 51-40-02-0G-0.; [04] LOCATED; DRILLED; DEBURRED NEW DOUBLER; INSTALLED NUTPLATES PER SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 143A3230; DWG 143A3233. OK TO INSTALL.; [05] VERIFIED CORRECTIVE ACTION 3 AND 4.<BR><BR>OK TO INSTALL NEW DOUBLER.; [06] INSTALLED DOUBLER PER SRM 51-40-02-0G-0 ; DWG 143A3230; DWG 143A3233; FASTENERS THROUGH SKIN AND CLIPS.; [07] VERIFIED CORRECTIVE ACTION 6. <BR><BR>DOUBLER INSTALLED.; [08] INSTALLED ANTENNA BLANK OUT PLATE PER SRM 51-40-02-0G-0 USING SCREW GUN ID:NCX001167 SN: UNKNOWN. APPLIED FILLET SEAL PER AMM 51-31-00-390-804. BELLY SKIN PAINT TOUCH UP TO BE ACCOMPLISHED ON CUSTOMER CARD # TTG8Q0067YJQ.; [09] RII INSPECTED REPAIR COMPLETION PER SRM 51-40-02 AND DWG 143A3230 AND DWG 143A3233.; [10] VERIFIED REPAIR COMPLETION PER SRM 51-40-02 AND DWG 143A3230 AND DWG 143A3233; REFINISH ON TTG8Q0067YJQ; JOB COMPLETE.

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