SDR SWAA2020102923320

Service difficulty report · Channel · Boeing 7377H4

Difficulty date: October 15, 2020
Submitted: October 29, 2020
Operation: Air carrier
Aircraft: N266WN
Make and model: Boeing 7377H4
Aircraft serial: 32523
Aircraft time: 47,223 hours, 28,167 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Condition: Corroded
Location: Bs 259-270
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, FLIGHT DECK FLOOR STRUCTURE INTERCOSTAL SUPPORT CHANNEL BETWEEN STA 259.5 AND STA 270 WL 208.1 BL 0 SPOT OF CORROSION. BARNISHED SURFACE CORROSION INTERCOSTAL STA 259.5 TO STA 270 WL 208.1 BL 0 ORGINAL MATERIAL 0.040, MATERIAL LOSS THAN 0.002, REMAINING MATERIAL 0.038, IAW B737-700 SRM 51-10-02/51-10-51-1A-1. INTERCOSTAL SUPPORT CHANNEL BETWEEN LIMITS. TREATED AND PRIMED, IAW B737-700 SRM 51-20-01 AND WORK INSTRUCTIONS NO 5310-1-14366-NG.

More about the Boeing 737-7H4