# SDR IPXA1B65040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2011
- Submitted: March 2, 2011
- Operation: Air carrier
- Aircraft: [N583UP](https://openairdocs.org/aircraft/N583UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25867
- Aircraft time: 90,628 hours, 15,846 cycles
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Web
- Part number: 65B027123
- Condition: Cracked
- Location: Apu Bay
- 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/IPXA1B65040

## Discrepancy

INSPECTION TYPE:D, EMP APU COMPT FWD B/H AFT FACE LT LOWER FOUND ONE LOCATION CRACKED.  APU COMPT FWD B/H AFT FACE BS 2658 LBL 30" & WL 265 AREA WEB REPAIRED IAW HX RS R53-80-36922, REV A & EO B747-5310-41623-A.  ORG MAT'L T1-6AL-4V-0.020" ANNEALED CRACK LENGTH 0.70".  REPAIR SIZE IS 7" X 8.875".  REPAIR TIME LIMIT: UNTIL 35000 CYCS.

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