# SDR U2RA201701310004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2017
- Submitted: March 17, 2017
- Operation: Air carrier
- Aircraft: [N919CA](https://openairdocs.org/aircraft/N919CA), registered now
- Make and model: Boeing 747428
- Aircraft serial: 25302
- Aircraft time: 89,251 hours, 13,055 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 65B01751
- Condition: Cracked
- Location: Bs 1160
- Part time: 89,251 hours, 13,055 cycles
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/U2RA201701310004

## Discrepancy

PREVIOUS TENSION TIE ATTACH LOCATION AT BS 1160 FRAME WEB HAS TWO PREVIOUS FASTENER HOLES CRACKED. ACCOMPLISHED OVERSIZE HOLE REPAIR IAW SERVICE BULLETIN 747-53A2507 REVISION 2.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.