# SDR QMLA2017123117002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2016
- Submitted: January 4, 2017
- Operation: Air carrier
- Aircraft: [N189AM](https://openairdocs.org/aircraft/N189AM), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 54047
- Aircraft time: 1,506 hours
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Component: Battery, Concordebatt, RG407
- Component part number: RG407
- Stage of operation: AA
- 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/QMLA2017123117002

## Discrepancy

ON RETURN FROM RECEIVING HOSPITAL TO BASE, DETECTED SULFUROUS FUMES.  NO SECONDARY INDICATIONS.  LANDED AT OUR BASE.  NOTIFIED DISPATCH THAT OUR AIRCRAFT WAS OUT OF SERVICE AND CALLED OUR DUTY MECHANIC.  INSPECTION OF AIRCRAFT REVEALED FUMES WERE COMING FROM LEAD ACID BATTERY IN NOSE COMPARTMENT OF AIRCRAFT.  BATTERY WAS REPLACED, GROUND CHECKED, RETURNED TO SERVICE.

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