SDR UPS08M52103

Service difficulty report · Stringer · Doug MD11

Difficulty date: January 20, 2008
Submitted: April 30, 2008
Operation: Air carrier
Aircraft: N294UP
Make and model: Doug MD11
Aircraft serial: 48472
Aircraft time: 62,889 hours, 8,989 cycles
System (JASC): 5713 · Wing, Longeron/Stringer
Part: Stringer
Condition: Cracked
Location: Rt Wing
Stage of operation: IN
How discovered: 9
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 RT WING UPPER STRINGER END NR S10 SUSPECT CRACK AS MARKED, THRU ACCESS NR 636CB. HFEC INSP CARRIED OUT PER DAC NDT SPM R.13 PART06.10.01.001 AND CRACK APPROX 11 INCHES FOUND AS MARKED. CRACK AT RHW STR NR 10 SLOTTED OUT PER SRM 57-20-00 FIG 10V.1 R.35. REPAIR ANGLES FAB PER SRM 57-20-00 FIG 10V.1 R35 AND HEAT TREATED TO T6 COND PER 7.00-1 AND AVERAGE HARDNESS HRB82.5 IS ACCEPTABLE PER DPS1.05-3. REPAIR ANGLES HOLES PICK UP PER SRM 57-20-00.

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