# SDR 2008UALA05840

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2008
- Submitted: September 26, 2008
- Operation: Air carrier
- Aircraft: N173UA
- Make and model: Boeing 747422
- Aircraft serial: 24380
- Aircraft time: 71,915 hours, 8,151 cycles
- Engine: Pwa PW4056
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Cracked
- Location: Bs 480 S10l
- 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/2008UALA05840

## Discrepancy

BS 480, STR 10L CRACKED IN CHANNEL AT FASTENER HOLE.  MAJOR REPAIR ACCOMPLISHED PER S/B 747-53A2484 FIG 24.

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