# SDR DU4R202310100039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2023
- Submitted: October 10, 2023
- Operation: General aviation
- Filed by: [AAR Aircraft Services, LLC, repair station DU4R141M](https://openairdocs.org/faa-repair-station/DU4R141M/aar-aircraft-services-llc.md) (OpenAirDocs)
- Aircraft: N420MB
- Make and model: Airbus A320*
- Aircraft serial: 00961
- Aircraft time: 58,975 hours, 26,369 cycles
- System (JASC): [5400 · Nacelle/Pylon Structure](https://openairdocs.org/jasc/5400)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: LD
- 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/DU4R202310100039

## Discrepancy

DURING SCHEDULED INSPECTION AT HAECO LAKE CITY, FLORIDA FOUND #1 ENGINE PYLON I/B LOWER ARM HOLE "B" HAS A CRACK INDICATION FROM GOUGES, I/B SIDE OF HOLE IN LOWER ARM LAYER A THE 10:00 O'CLOCK POSITION.  S./O 339001 N/R 28127

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