SDR UPS08M51400

Service difficulty report · Doubler · Doug MD11F

Difficulty date: December 3, 2007
Submitted: January 14, 2008
Operation: Air carrier
Aircraft: N291UP
Make and model: Doug MD11F
Aircraft serial: 48477
Aircraft time: 45,846 hours, 5,703 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Doubler
Condition: Corroded
Location: Fuselage
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

INSPECTION TYPE:C LWR FUSELAGE STA 1941 LONG 33R FOUND EXISTING REPAIR SIGN OF CORROSION. EXISTING REPAIR DOUBLER CORR EXCEEDS LIMIT. FASTENER REMOVED. HFEC INSP C/O ON EXISTING TRIM OUT AREA, FOUND NO CRACK EVIDENT. RETRIM ON EXISTING TRIMMED AREA. HFEC INSP C/O ON TRIM OFF AREA, FOUND NO CRACK EVIDENT. FAB 2EA NEW REPAIR DOUBLERS & 12 EA FINGER DOUBLERS. ALL NEW DOUBLERS HOLES PICKED UP, PAINTED & INSTALLED PER SRM 51-31-01 VII R35.

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