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SDR DHL2004755504

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Service difficulty report · Skin · Boeing 727225

FAA SDR system

Difficulty date
October 18, 2004
Submitted
December 9, 2004
Operation
Air carrier
Aircraft
N755DH
Make and model
Boeing 727225
Aircraft serial
21857
Aircraft time
42,695 hours, 33,875 cycles
System (JASC)
5753 · Trailing Edge Flaps
Part
Skin
Condition
Corroded
Location
Lt Wing 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

DURING C-CHECK, LEFT I/B MID FLAP UPPER SURF WBL 124 HAS CORR BULGES AT SKIN BUTT JOINT, MARKED. CUT OUT CORROSION DAMAGED SECTION OF LEFT I/B MID FLAP UPPER SURFACE SKIN AT BUTT JOINT STA 124 SIZE 7.75 X 1.875 INCH IAW B727 SRM 51-10-1. REMOVED & REPLACED UPPER RIB CHORD AT STA 124 DUE TO CORROSION BEYOND LIMITS MATERIAL LOSS .031 IAW B727 SRM 57-50-1 FIG 3. FABRICATED REPAIR DOUBLER 13.5 X 5 INCH 2024-T3.071 PO 9001424 & FILLER FROM 2024T3.063 PO 9912380, 8 X 2 INCH IAW B727 SRM 57-50-4. ALODINED & PRIMED PARTS IAW B727 SRM 51-10-2. INSTALLED REPAIR IAW B727 SRM 57-50-4 PO 4318177 P/N 69-20772-2.