# SDR DALA1230036306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2012
- Submitted: May 9, 2012
- Operation: Air carrier
- Aircraft: N666US
- Make and model: Boeing 747451
- Aircraft serial: 23821
- Aircraft time: 65,648 hours, 11,953 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Doubler
- Condition: Cracked
- Location: Bs 1200 Frame
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1230036306

## Discrepancy

DURING INSPECTION FOUND CRACK AT THE TENSION TIE STATION STA1200 RT FRAME DOUBLER.  MAINTENANCE REMOVED DOUBLER AND INSTALLED WITH NEW FRAME DOUBLER AS PER B747-400 SRM 51-40-02.

---
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.