Service difficulty report · Skin · Boeing 73783N

Difficulty date
June 11, 2025
Submitted
June 16, 2025
Operation
Air carrier
Aircraft
N5179A
Make and model
Boeing 73783N
Aircraft serial
32614
Aircraft time
57,314 hours, 38,464 cycles
Part
Skin
Condition
Cracked
Location
Zone 300
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

LH HORIZONTAL STABILIZER, LOWER SKIN STAB STA 120.30+10" FROM AFT SPAR, CRACK LENGTH 1.0".(<P>ACCOMPLISHED PERMANENT REINFORCING REPAIR EXTERNAL DOUBLER ALUMINUM 2024-T3 0.090" AND FILLER REPAIR ALUMINUM 2024-T3 0.071" AT LH HORIZONTAL STABILIZER, LOWER SKIN STA 120.30+10" FROM AFT SPAR IAW SRM 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2 REV 23. THIS REPAIR IS CATEGORY "B" AND INSPECTION REQUIREMENTS 56,000 FLIGHT CYCLES IAW SRM 55-10-01-2R-11 ITEM 5A TABLE 204 FIG 206. THRESHOLD INSPECTION 56,000 TOTAL FLIGHT CYCLES PER DVI AND LFEC. REPEAT INSPECTION OF DVI AND LFEC DUE EVERY 9000 FLIGHT CYCLES. NO FURTHER DEFECTS NOTED.</P>)

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