Service difficulty report · Web · Boeing 7377H4

Difficulty date
March 7, 2023
Submitted
April 12, 2023
Operation
Air carrier
Aircraft
N443WN
Make and model
Boeing 7377H4
Aircraft serial
29838
Aircraft time
65,630 hours, 38,789 cycles
Part
Web
Condition
Corroded
Location
Zn 100 Fus Lower
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 DOOR CUTOUT LOWER WEB UPPER SURFACE CORROSION BETWEEN STA 794.3-847 RBL 25'<[01] EVALUATED AREA AT AFT CARGO DOOR CUTOUT LOWER WEB STA 794.3-847<BR>FOUND CORROSION EXFOLIATED OUT OF LIMITS PER SRM 53-60-15-1A-1<BR>RECEIVED; LOCATED AND DRILLED NEW AFT CARGO DOOR CUTOUT LOWER WEB STA 794.3-847 (PN: 146A8123-25) PO:1792296 PER SRM 51-40-05-0G-0<BR>TREATED AND PRIMED NEW FASTENER HOLES PER AMM 51-21-41-370-803 AND 51-21-72-370-804;[02] FINAL INSPECTION; VERIFIED STEP #1. ALL WORK PERFORMED.

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