SDR TX9Y20110924002

Service difficulty report · Structure · Boeing 7472B5F

Difficulty date: September 21, 2011
Submitted: September 29, 2011
Operation: Air carrier
Filed by: TX9Y778Y
Taikoo Xiamen Aircraft Engineering Company Ltd
Aircraft: N708SA
Make and model: Boeing 7472B5F
Aircraft serial: 24196
Aircraft time: 98,526 hours, 16,401 cycles
System (JASC): 5410 · Nacelle/Pylon, Main Frame
Part: Structure
Condition: Damaged
Location: Zone 400
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 ACCOMPLISHMENT OF SB 747-54-2230 R0, FIGURE 14 ON THE STRUT STRUCTURE ASSEMBLY AT NR 3 PYLON, CRACK DAMAGE AT NUMEROUS HOLES WAS FOUND IN THE CAP SKIN ASSEMBLY, THE BULKHEAD STRAP AND THE FRONT SPAR CHORD. DAMAGE WAS ALSO FOUND IN THE BULKHEAD FRAMES AT N STA 221.9. REPAIRED PER TEC-SOF-11-0032 AND SB 747-54-2230 R0, FIGURE 31.

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