Service difficulty report · Stiffener · Doug MD11

Difficulty date
July 11, 2006
Submitted
September 25, 2006
Operation
Air carrier
Aircraft
N521FE
Make and model
Doug MD11
Aircraft serial
48478
Aircraft time
50,678 hours, 6,480 cycles
Part
Stiffener
Part number
ARB75092
Condition
Cracked
Location
Rt Wing
Stage of operation
IN
How discovered
E
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

CRACK FOUND ON RHW TANK AT STR-9, XORS 819, APPROX 7" LONG DURING HFEC INSPECTION. STIFFENER AT STR 9 RHW TANK XORS 819 REMOVED AS PER SRM 51-31-01 VOL II. CRACKED AREA SLOTTED OUT AS PER SRM 57-20-00 FIG 10 VOL I. REPAIR ANGLES FABRICATED USING MATERIAL 7075-0-0.080" AS PER SRM 57-20-00 FIG 10 VOL I AND INSTALLED AS PER SRM 57-20-00 PG 22 FIG 10 OPTION 3 VOL.I. CLASSIFIED MINOR REPAIR PER GMM 6-2-100.

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