Service difficulty report · Support · Boeing 7377H4

Difficulty date
November 29, 2021
Submitted
December 27, 2021
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
58,698 hours, 34,771 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo Bay
Stage of operation
UK
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 FWD CARGO BAY FLOOR TO SIDEWALL RBL 24 BS 500A+2; BS 500A+6; BS 500A+10; BS 500A+14; BS 500A+18. ; / [01] REMOVED CORROSION ON SEVERAL AREAS FROM UPPER SURFACE FLOOR TO SIDEWALL SUPPORT RBL 24; BS 500A+2; BS 500A+6; BS 500A+10; BS 500A+14; BS 500A+18 ; MAX.MAT. LOSS MEASURES : L=1.' X W=1.' X D=0.006' ORIG.THICKNESS IS 0.040' REMAINING THICKNESS 0.032' REWORKED AREAS FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2 PARAG. 4.A.(2). DETAIL D USED TOOL ID:IS000461. S/N:67126205. DUE DATE:01/2022.; [02] CORRECTED ITEM#1: REMAINING THICKNESS IS 0.034'.; [03] VERIFIED CORRECTIVE ACTIONS 1-2; [04] THIS CARD WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD #[TTG8Q009K95C]; [05] VERIFIED ACTION 4

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