SDR SWAA2021010435209

Service difficulty report · Support Channel · Boeing 7377H4

Difficulty date: December 7, 2020
Submitted: January 4, 2021
Operation: Air carrier
Aircraft: N211WN
Make and model: Boeing 7377H4
Aircraft serial: 34163
Aircraft time: 53,552 hours, 31,778 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support Channel
Part number: 140A9810
Condition: Corroded
Location: Cabin
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, INTERCOSTAL SUPPORT CHANNEL AT BS 259.5-BS 270 WL 208 LBL 4-RBL 4 HAS SEVERAL AREAS OF CORROSION. REMOVED, LOCATED AND DRILLED NEW CHANNEL AND INSTALLED INTERCOSTAL SUPPORT CHANNEL BS 259.5-270 LBL 4-RBL 4 WL 208, IAW BOEING DWG. 140A9810 AND SRM 51-40-05-0G-0; SRM 51-40-02-0G-0.

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