SDR UPS97422463

Service difficulty report · Web · Boeing 747123

Difficulty date: March 27, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N674UP
Make and model: Boeing 747123
Aircraft serial: 20100
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Condition: Cracked
Location: Bs 1860/1910
Stage of operation: IN
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

INSPECTION TYPE-C, FOUND CORROSION ON LOWER SIDE AND CRACKS ON UPPER SIDE OF CENTER BEAM WEBPLATE AT RBL/LBL 6 BETWEEN BS 1860/1910. LT UPPER CHORD AND WEB BETWEEN BS 1860 AND BS 1910 TRANSVERSE STIFFENER AT BS 1875, TWO WEB DOUBLERS AND CENTER GUIDE SUPPORT BRACKET AT BS 1864 REPLACED ACC DRAWING 65B06205 SHT 6 IN ACCORDANCE WITH SRM 51-30-05/02.