# SDR WRLA20100601401

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2010
- Submitted: July 6, 2010
- Operation: Air carrier
- Aircraft: N741WA
- Make and model: Boeing 747-4H6
- Registry model: [Boeing 747-4H6](https://openairdocs.org/model/boeing-747-4h6) (OpenAirDocs)
- Aircraft serial: 25702
- Aircraft time: 70,060 hours, 9,121 cycles
- Engine: Pwa PW4056
- System (JASC): [5742 · Wing, Nacelle/Pylon Attach Fittings](https://openairdocs.org/jasc/5742)
- Part: Bushing
- Part number: 65B08104211
- Condition: Damaged
- Location: Rt Wing
- 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/WRLA20100601401

## Discrepancy

CHAFING - FOUND PYLON -4 FRONT SPAR UPPER LINK FITTING BUSHING DAMAGE (LT).  PER SRM 57-20-90 REPAIR 1 REV 76, REPAIRED FRONT SPAR UPPER LINK LT SIDE BUSHING OF PYLON-4.

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