SDR EIA2006070

Service difficulty report · Stringer · Boeing 747SR46

Difficulty date: March 31, 2006
Submitted: May 22, 2006
Operation: Air carrier
Aircraft: N477EV
Make and model: Boeing 747SR46
Aircraft serial: 20784
Aircraft time: 73,634 hours, 35,203 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Cracked
Location: Bs 744 S13l
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

DURING C CHECK, CRACKS WERE FOUND ON STR 13L END AREA AT BS 744, CRACKS APPROX. 0.866 & 0.787 IN LENGTH. DAMAGE STRINGER CUT OUT BETWEEN BS 741.10 AND BS 750, SPLICE INSTALLED PER SRM 51-10-03, BOEING SR1D1-177208480, ECRA 477-51-111-1.

More about the Boeing 747-SR-46