SDR SWAA2022121372123

Service difficulty report · Web · Boeing 7377H4

Difficulty date: November 16, 2022
Submitted: December 13, 2022
Operation: Air carrier
Aircraft: N267WN
Make and model: Boeing 7377H4
Aircraft serial: 32525
Aircraft time: 52,811 hours, 31,569 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Condition: Corroded
Location: Bs 440-480
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 FWD CARGO DOOR CUT OUT SUB THRESHOLD WEB, BS 440 - 480, RBL 28 - 30, WL 156. REMOVED CORROSION AND FOUND WITHIN ALLOWABLE DAMAGE LIMITS IAW SRM 53-30-15-1A-1, ALLOWABLE DAMAGE 1, FIGURE 103, DETAIL D. LOCATED AND DRILLED A NEW THRESHOLD WEB BS 440 - 495, RBL 28, WL 156 IAW SRM 51-40-05 AND DWG 143A8122, REV.

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