SDR SCNA20201116231

Service difficulty report · Shear Web · Boeing 7378Q8

Difficulty date: November 1, 2020
Submitted: November 17, 2020
Operation: Air carrier
Aircraft: N813SY
Make and model: Boeing 7378Q8
Aircraft serial: 28237
Aircraft time: 60,154 hours, 22,792 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Shear Web
Condition: Corroded
Location: Aft Cabin
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 AFT CABIN FLOOR SHEAR WEB INBOARD OF GALLEY FITTING, STA1016, LBL 31, WL 208. AFT CABIN FLOOR SHEAR WEB AT BS 1016 LBL 31 FOUND TO BE OUT OF LIMITS, IAW B737-800 SRM NO ALLOWABLE LIMITS. REMOVED AND REPLACED SHEAR WEB, IAW B737-800 SRM 51-40-02-0G-0 AND BOEING DRAWING 147A5700 REV.

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