Service difficulty report · Skin · Boeing 757251

Difficulty date
December 20, 2012
Submitted
December 24, 2012
Operation
Air carrier
Aircraft
N521US
Make and model
Boeing 757251
Aircraft serial
23209
Aircraft time
81,695 hours, 34,893 cycles
Part
Skin
Condition
Cracked
Location
Nacelle
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

CRACK INDICATED ON INBD SKIN . CRACK APPROX .250" LONG AT FWD TOP AREA OF CUTOUT. ACCOMPLISHED DETAILED INSPECTION OF THE INBD SKIN IAW PRI 488100-14, REV B, PEV ORIG. NO FURTHER DAMAGE TRIMMED OUT DAMAGE IAW STEP 2 OF PRI 488100-14, REV B, REV ORIG HIGH FREQ EDDY CURRENT SURFACE SCAN INSPECT IAW NDT MANUAL D634N301, PART 6, 51-00-19. NO CRACKS ARE PRESENT IAW PRI 488100-14, REV B, REV 1, STEP 7 TRIMMED AND DRILLED DOUBLER. COMPLETED REPAIR IAW PRI 488100-14, REV B, REV 3.