Service difficulty report · Splice · Boeing 74747UF

Difficulty date
February 18, 2020
Submitted
February 21, 2020
Operation
Air carrier
Aircraft
N408MC
Make and model
Boeing 74747UF
Aircraft serial
29261
Aircraft time
81,911 hours, 13,730 cycles
Part
Splice
Condition
Cracked
Location
Bs 939-991
Stage of operation
IN
How discovered
E
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

LHS BS 980 TO 990 STR 38R DRAG SPLICE FTG AREA ONE EACH FASTENER HOLE FOUND CRACK AND CORROSION AT SKIN LAYER.(<P>FUSELAGE SKIN IS REPAIRED AS PER SRM 53-20-01-2R-2 REPAIR 2 FIG 201 AT BS 939.5 TO 991.5 BETWEEN STR 37L-39L. THIS REPAIR IS A CATEGORY B REPAIR. SUPPLEMENTAL INSPECTION IS REQUIRED AS PER SRM 53-20-01-2R-2 REPAIR 2 FIG 201 TABLE III REV 87- 20OCT2019.</P>)

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