SDR UPS07M49708

Service difficulty report · Intercostal · Doug MD11F

Difficulty date: April 13, 2007
Submitted: April 30, 2007
Operation: Air carrier
Aircraft: N287UP
Make and model: Doug MD11F
Aircraft serial: 48539
Aircraft time: 62,215 hours, 9,282 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Bs 1256-1273
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 DOOR 3 CROWN AREA, AT STA 1256 TO STA 1273 LONG 1 RT INTERCOSTAL FACE FOUND CORROSION. CORROSION REMOVED PER SRM 51-21-01 VOL IIR38 ORI THK 0.032" MATL REMOVED 0.023" MATL REMAIN 0.009" FOUND OUT OF LIMIT PER SRM 53-00-01 FIG1AVOLIR38. INTERCOSTAL REMOVED PER SRM 51-35-01VOL IIR38. NEW INTERCOSTAL FAB PER BOEING DWG AEA0202REVK. HEAT TREATED PER DPS7.00-1 AND HARD VALUE 15T88.5 PER DPS1 05-3. HOLES PICK UP, PROTECTED AND PAINT. INSTALLED PER SRM 51-35-01 VOLIIR38.

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