SDR NACA2025031000004

Service difficulty report · Skin · Boeing 7373Q8

Difficulty date: March 10, 2025
Submitted: April 2, 2025
Operation: Air carrier
Aircraft: N304KH
Make and model: Boeing 7373Q8
Aircraft serial: 28054
Aircraft time: 56,230 hours, 31,287 cycles
System (JASC): 5753 · Trailing Edge Flaps
Part: Skin
Condition: Damaged
Location: Zone 500 Flap
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

THE DAMAGE WAS FOUND AT LH WING O/B AFT FLAP LOWER SKIN , WBL 365.4 , L:1.8 INCH , W:0.7 INCH. PERFORMED CATEGORY A METAL BOND REPAIR AT LH WING I/B AFT FLAP LOWER SKIN. WBL 365.4 REMOVED THE OLD DOUBLER AND USED A LARGE DOUBLER FOR THE OLD DAMAG AND THE NEW DAMAGE. I.A.W. B737-300 SRM 57-53-02 REPAIR 2 AND SRM 51-70-10 REPAIR 4 (R135)

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