SDR DALA1151996309

Service difficulty report · Skin Panel · Boeing 747451

Difficulty date: September 7, 2011
Submitted: September 8, 2011
Operation: Air carrier
Aircraft: N669US
Make and model: Boeing 747451
Aircraft serial: 24224
Aircraft time: 90,864 hours, 11,144 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin Panel
Condition: Damaged
Location: Fuselage
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 LCK, FUSELAGE SKIN PANELS REQUIRED REPAIR BY BLENDING OUT WEAR DAMAGE AT THE VERTICAL STAB SEAL INTERFACE. FOLLOW-ON SURFACE HFEC INSP ARE REQ PER EM 5331-01190, SECTION 02. BOEING SB 747-53A2470, REV 2 / FAA AD 2009-14-02. ACCOMP SURFACE HFEC INSP PER SECT II OF ER/A 491632-14AD PRIOR TO 20,000 TOTAL FC AND REPEAT AT INTERVALS NOT TO EXCEED 6,000 FC. AA 5331-01190 ADDED FOR AC 6309 ASSOCIATED ER/A 13-491632 ADDED FOR AC 6309.