Service difficulty report · Intercostal · Boeing 74747UF

Difficulty date
August 28, 2010
Submitted
September 20, 2010
Operation
Air carrier
Aircraft
N497MC
Make and model
Boeing 74747UF
Aircraft serial
29258
Aircraft time
49,930 hours, 7,554 cycles
Engine
Ge CF680
Part
Intercostal
Part number
65B0616550
Condition
Cracked
Location
Bs 2040-2060
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

REPAIR OF CRACK DAMAGE AT BS 2040 AND BS 2060 ON INTERCOSTAL AT RBL .625 AS DOCUMENTED PER EGAT NCR 612 & NCR 614 WERE REPAIRED IAW EGAT EI T2010A53B-1825. THE DAMAGED INTERCOSTAL WAS CUT AT BS 2070 AND THE DAMAGED SECTION OF THE INTERCOSTAL WAS REMOVED. A REPLACEMENT SECTION OF 65B06165-50 INTERCOSTAL WAS OBTAINED FOR THE REMOVED SECTION. THE REPLACEMENT SECTION WAS ATTACHED IAW STRUCTURE INSTALLATION DWG 146U5090 AND SECURED TO THE EXISTING INTERCOSTAL AT BS 2070 WITH A SPLICE REPAIR IAW SRM 53-60-53.

More about the Boeing 747-47UF