# SDR UPS07M49707

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2007
- Submitted: April 30, 2007
- Operation: Air carrier
- Aircraft: [N287UP](https://openairdocs.org/aircraft/N287UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48539
- Aircraft time: 62,215 hours, 9,282 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Bs 1256-1273
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS07M49707

## Discrepancy

INSPECTION TYPE:C DOOR 3 CROWN AREA, AT STA 1256 TO STA 1273 LONG 1 LT INTERCOSTAL BOTH FACES FOUND CORROSION.  CORROSION REMOVED PER SRM 51-21-01 VOLIIR38 ORI THK 0.032",  MAT'L REMOVED 0.020", MAT'L REMAINED 0.012" FOUND OUT OF LIMIT PER SRM 53-00-01 FIG1AVOLIR38.  INTERCOSTAL REMOVED PER SRM 51-35-01 VOLIIR38.  NEW INTERCOASTAL FAB PER BOEING DWG AEA0202REVK.  HEAT TREAT PER DPS7.00-1 AND HARDNESS VALUE 15T88.5 PER DPS1.05-3.  INTERCOSTAL INSTALL PER SRM 51-35-01 VOL IIR38.

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