# SDR USAA050151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2005
- Submitted: February 16, 2005
- Operation: Air carrier
- Aircraft: N521AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23856
- Engine: Cfmint CFM563B2
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Condition: Cracked
- Location: Lt Pylon
- Part time: 52,547 hours
- 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/USAA050151

## Discrepancy

PIT - Q6 - PYLON STRUT SKIN, .7500 INCH CRACK; PYLON STRUT SKIN FOR LT ENGINE, ACCESS PANEL CUTOUT.  STOP DRILL OF CRACK AND INSTALLATION AT DOUBLER IAW TYP REP 54-30-07.  (K)

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