Service difficulty report · Skin · Boeing 73779P

Difficulty date
September 7, 2023
Submitted
September 26, 2023
Operation
Air carrier
Aircraft
N7861J
Make and model
Boeing 73779P
Aircraft serial
33008
Aircraft time
49,620 hours, 33,734 cycles
Part
Skin
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
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

CORROSION ON EXTERNAL FUSELAGE SKIN BS887 STR25R TO STR25L<[01] CORRECTION TO TASK DETAIL SHOULD STATE ' CORROSION ON EXTERNAL FUSELAGE SKIN BS887 STR25R TO STR25L FWD OF BUTT JOINT ';[02] REMOVED CORROSION IN AN AREA OF 7.80' X 0.5 0' REMOVED 0.004' ORIGINAL THICKNESS 0.080' FOUND TO BE IN LIMITS PER SRM 53-00-01-1A-5. REAPPLIED PROTECTIVE FINISH AS SRM 53-00-01-1A-5.

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