SDR SCNA20230110027

Service difficulty report · Web · Boeing 7378

Difficulty date: December 12, 2022
Submitted: January 10, 2023
Operation: Air carrier
Aircraft: N824SY
Make and model: Boeing 7378
Aircraft serial: 33976
Aircraft time: 47,021 hours, 27,802 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Condition: Corroded
Stage of operation: IN
How discovered: O
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

DEFECT TC 532400000 NR 00288: AFT CARGO LOWER MAIN SILL WEB AT STA 787-847 RBL 20 WL 158 HAS CORROSION AROUND MULTIPLE FASTENER HOLES (MARKED). RESOLUTION: CORROSION ON AFT CARGO LOWER MAIN SILL WEB FOUND TO BE OUT OF LIMITS IAW 53-60-15-1A-1 STEP 4-6-2-B, REMOVED LOWER MAIN SILL WEB IAW SRM 51-40-02-06-00 REV 77. INSTALLED NEW WEB IAW LOT # 51-24-832-1 IAW SRM 51-40-02-06-0 REV 77. AND BOEING DRAWING 146A8120 REV: -

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