# SDR DALA13000756307

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2013
- Submitted: January 11, 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 1180
- 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/DALA13000756307

## Discrepancy

DURING OPEN HOLE HFEC INSPECTION ON LT SIDE BS 1180 TENSION TIE, FOUND ONE CRACK AT FWD CHANNEL, LOWER ROW 5TH FASTENER HOLE FROM OTBD. REAMED OVERSIZE FROM 0.187" TO 0.216" DIA IAW SB747-53A2507, REV 1.

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