SDR UIEA2011011400100

Service difficulty report · Intercostal · Boeing 747341

Difficulty date: January 14, 2011
Submitted: February 24, 2011
Operation: Air carrier
Aircraft: N355MC
Make and model: Boeing 747341
Aircraft serial: 23395
Aircraft time: 74,043 hours, 14,432 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Bs 2040-2060
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

BULK CARGO INTERCOSTAL AT RBL 45 STA 2040-2060. SKIN UNDER ANCHOR NUTS CORRODED. TO REMOVE ANCHOR NUTS FOR DAMAGE REMOVAL AND TO DETERMINE LIMITS.(BLENDING DONE. MATERIAL THICKNESS = 0.063. REMAINING = 0.040. INTERCOSTAL FABRICATED PER DRAWING 65B061261 REV F. CAUSING MATERIAL BAC1517-167 B/N 0001577812 ATTACHED. INTERCOSTAL REPAIRED PER SRM 53-10-07 AND SPLICED AT STA 2060 SATISFACORY. ANCHOR NUTS INSTALLED PER SRM 51-30-02. SATIS.)