# SDR IPXA2B71951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2012
- Submitted: March 2, 2012
- Operation: Air carrier
- Aircraft: [N581UP](https://openairdocs.org/aircraft/N581UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25866
- Aircraft time: 87,516 hours, 15,121 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: 453U156328
- Condition: Corroded
- Location: Bs 989
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2B71951

## Discrepancy

INSPECTION TYPE: D, FWD CARGO BAY BS 989 END WALL LINER CUTOUT LOWER END BOTTOM LINER SUPPORT FOUND CORROSION AT SEVERAL AREA.  FWD CARGO COMPT STA 989, END WALL LINER CUTOUT LOWER END BOTTOM LINER SUPPORT REPLACED AND INSTALLED IAW SRM 51-10-02 AND SRM 51-40-02, REV 60.

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