SDR UIEA2011011400099

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 1935
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. SKIN CORRODED UNDER ANCHOR NUT AT STA 1935. TO REMOVE NUT AND REMOVE DAMAGE FOR ASSESSMENTS. (BLENDING DONE. MATERIAL THICKNESS = 0.063. REMAINING = 0.040. INTERCOSTAL FABRICATED PER DRAWING 65B06126 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 SATISFACTORY.)