Service difficulty report · Stringer · Boeing 75733N

Difficulty date
October 17, 2024
Submitted
October 21, 2024
Operation
Air carrier
Aircraft
N78866
Make and model
Boeing 75733N
Aircraft serial
32591
Aircraft time
69,133 hours, 20,775 cycles
Part
Stringer
Part number
146N3110840
Condition
Corroded
Location
Sta 1440. Str 3
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

POSIBLE CORROSION ON BELLY SKIN AT STA 1440 AND STR 30. CUTOUT DAMAGE SECTION, SKIN WAS NOT CORRODED. FABRICATED NEW SPLICE AND FILLER SEE TAG R06302 AND 44-0008 FOR WORK ACCOMPLISHED. ALODINE AND PRIMED AND INSTALLED NEW STRINGER SPLICE AND FILLER. REF ECRA 5360-01886. UPDATED SFR DETAILS APPROVED SDR/SFR UPDATED SFR INFO UPGRADE CLOSING REQUIREMENT VERIFIED REPAIR INSTALLED. SEE BAM N/R 2239569 FOR ALL WORK ACCOMPLISHED. ACCOMPLISHED INSPECTION OF AREA. CORROSION FOUND TO BE ON STRINGER 30, NOT THE SKIN. REMOVED DAMAGED SECTION OF STRINGER. FABRICATED REPAIR PARTS, SEE RO6302 AND RO6305 AND RELATED FORMS 44.0008. DRILLED, TRIMMED, TREATED, PRIMED AND INSTALLED ALL REPAIR PARTS PER EC/RA 5360-01886.

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