SDR SWAA2026041679835

Service difficulty report · Web · Boeing 7378H4

Difficulty date: March 14, 2026
Submitted: April 16, 2026
Operation: Air carrier
Aircraft: N8638A
Make and model: Boeing 7378H4
Aircraft serial: 36911
Aircraft time: 39,341 hours, 19,166 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Condition: Corroded
Location: Zone 100
Stage of operation: IN
How discovered: V
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 SHIELD WEB, BETWEEN BS 767 - 787, WL 156, & RBL 21 IN THE AFT CARGO BAY. REPLACED SHIELD WEB AND FASTENERS LOCATED BETWEEN BS767 TO BS787 WL156 AND RBL21 AT AFT CARGO COMPARTMENT IAW B737-800 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG146A0081 SHEET:49 REV: A.

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