# SDR DALA13002116307

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2012
- Submitted: January 16, 2013
- Operation: Air carrier
- Aircraft: N667US
- Make and model: Boeing 747451
- Aircraft serial: 24222
- Aircraft time: 97,543 hours, 11,950 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Tension Tie
- Condition: Cracked
- Location: Bs 1220
- 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/DALA13002116307

## Discrepancy

DURING OPEN HOLE HFEC INSPECTION ON LT SIDE BS 1220 TENSION TIE,  FOUND ONE CRACK AT WEB, UPPER ROW 5TH FASTENER HOLE FROM OTBD.  REAMED OVERSIZE FROM 0.187" TO 0.199" DIA SB 747- 53A2507, REV 1.

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