SDR DALA13002286307

Service difficulty report · Skin · Boeing 747451

Difficulty date: December 18, 2012
Submitted: January 17, 2013
Operation: Air carrier
Aircraft: N667US
Make and model: Boeing 747451
Aircraft serial: 24222
Aircraft time: 97,543 hours, 11,950 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Cracked
Location: Bs 2521
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 HFEC INSPECTION CARRIED OUT AND FOUND ONE CRACK AT SKIN TO VERTICAL STAB UPPER LOBE DOUBLER LT SIDE AT BS 2521 WITH CRACK LENGTH OF APPROX 0.5". REPAIRED IAW PR I509709-14AD REV 0, 1, 2, 3. PRI 509709-14AD REV 0, 1, 2, 3, COMPARED WITH ERA 509709-14AD REV 0 AND REFER SB 747-53A2651, REV 1 FOUND IN COMPLIANCE.