# SDR IPXA2014102784702

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2014
- Submitted: October 27, 2014
- Operation: Air carrier
- Aircraft: [N570UP](https://openairdocs.org/aircraft/N570UP), registered now
- Make and model: Boeing 747-44AF
- Registry model: [Boeing 747-44AF](https://openairdocs.org/model/boeing-747-44af) (OpenAirDocs)
- Aircraft serial: 35667
- Aircraft time: 26,574 hours, 4,478 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Part number: 65B0271220
- Condition: Cracked
- Location: Bs 2658
- 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/IPXA2014102784702

## Discrepancy

INSPECTION D, APU FIRE BOTTLE COMPARTMENT FS 2658 AFT BULKHEAD ATTACH STIFFENER IS FOUND CRACK AT LT SIDE OTBD AREA DURING WEB REPAIR, NR 1 STIFFENER COUNT FROM LOWER.  LT SIDE OTBD AREA IS REPAIRED IAW HX RI-53-83-10740, REV A & EO B747-5330-55798-A.

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