SDR AU970748

Service difficulty report · Stringer · Boeing 747312

Difficulty date: May 28, 1997
Submitted: March 26, 2000
Operation: General aviation
Make and model: Boeing 747312
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Corroded
Location: Bs 1820-1840
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

(AUS) STRINGERS 51L AND 51R LOCATED IN AFT CARGO COMPARTMENT FUSELAGE BILGE AREA (SECTION 46) CONTAINED EXFOLIATION CORROSION IN AREAS FROM BS 1820 TO BS 1840:- STRINGER 51L - EXFOLIATION CORROSION IN VERTICAL FLANGE OF TOP HAT SECTION OF EXTRUDED STRINGER STRINGER 51R - CORROSION IN BASE OF TOP HAT EXTRUDED STRINGER - CRACK ALSO FOUND AT BS 1860