# SDR USAA2013041700028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2013
- Submitted: April 17, 2013
- Operation: Air carrier
- Aircraft: N427US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24549
- Aircraft time: 63,346 hours, 42,205 cycles
- System (JASC): [5752 · Aileron Tabs](https://openairdocs.org/jasc/5752)
- Part: Skin
- Part number: 654645521C
- Part serial: BN185
- Condition: Cracked
- Location: Lt Aileron Tab
- 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/USAA2013041700028

## Discrepancy

C3 CHECK - LEFT AILERON TAB LOWER SKIN CRACKED AT 28.5 INCHES INBOARD OF OUTBOARD END AND 1 INCH FORWARD OF TRAILING EDGE.  REMOVED AND REPLACED TAB IAW JOB CARD 03C30627009.

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