Service difficulty report · Panel · Boeing 7377H4

Difficulty date
July 24, 2012
Submitted
July 24, 2012
Operation
Air carrier
Filed by
Z6WR336Y
Spirit Aerosystems Inc
Aircraft
N713SW
Make and model
Boeing 7377H4
Aircraft serial
27847
Aircraft time
50,474 hours, 30,011 cycles
Part
Panel
Part number
315A2502102
Condition
Delaminated
Location
Thrust Reverser
Part time
50,474 hours, 30,011 cycles
Component
Thrust Reverser · Boeing · 737700
Component part number
315A229594
Stage of operation
IN
How discovered
U
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

REF CMM 78-31-24, REV 24, 01JUL2012, FIGURE 3, ITEM 675. THE 315A2502-102 BOND PANEL HAS VISUAL DELAMINATION ALONG THE AFT EDGE 6.00 FROM THE LOWER EDGE TO 23.00 FROM THE LOWER EDGE. ULTRASONIC INSPECTION PER NDT MANUAL REVEALS SEVERAL AREAS OF DISBOND THROUGHOUT THE ENTIRE NOZZLE END OF THE PANEL. AREA MEASURES 19.0 X 71.0". AN APPROX 6 X 6 REPRESENTATIVE SAMPLE HAS BEEN REMOVED FROM THE 315A2502-102 BOND PANEL. VISUAL INSPECTION REVEALS THAT THE PERFORATED FACE SHEET OML SURFACE APPEARS TO NOT HAVE BEEN PROPERLY PREPARED PRIOR TO ORIGINAL BONDING.

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