# SDR WRLA20121002556

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2012
- Submitted: October 10, 2012
- Operation: Air carrier
- Aircraft: N740WA
- Make and model: Boeing 747-4H6
- Registry model: [Boeing 747-4H6](https://openairdocs.org/model/boeing-747-4h6) (OpenAirDocs)
- Aircraft serial: 25700
- Aircraft time: 76,315 hours, 10,134 cycles
- Engine: Pwa PW4056
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: AP
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRLA20121002556

## Discrepancy

THE CREW WROTE UP "STRONG ELECTRICAL SMELL AFTER GEAR EXTENSION" INBOUND TO OKO.  CREW ALSO REPORTS THE NR 3 PACK TRIPPED OFF SHORTLY AFTER SMELL NOTICED AND ONCE THIS HAPPENED THE SMELL WENT AWAY.  INSPECTED NR 3 PACK AND GEAR HANDLE WITH NO DEFECT NOTED.  DEFERED THE NR 3 PACK AS PRECAUTION AND WILL TROUBLESHOOT THIS SYSTEM IN SUU ON 03 OCT.

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