# SDR HALA20250210055

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2025
- Submitted: February 11, 2025
- Operation: Air carrier
- Aircraft: [N399HA](https://openairdocs.org/aircraft/N399HA), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1496
- Aircraft time: 44,707 hours, 7,122 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA20250210055

## Discrepancy

ATB - AIR TURN BACK DUE TO STRONG METALIC ODOR, FROM PRIMARALY #1 AND #2 DOOR. COULD ALSO SMELL AT #3 ORDER AND LESS AT # 4 DOOR. BOROSCOPE APU FIRST STAGE COMPRESSOR. CHECK OK. INSPECTED IP CHECK VALVE ON ENG #1 & #2, NO DEFECTS FOUND. PER AMM 36-11-41-200-804-A. FORWARD AND AFT AIR COND RECIRCULATION FITERS REPLACED IAW AMM 21-21-41. OPERATIONAL CHECK GOOD. PERFORMED PACK BURN OUT PER AMM 21-00-00. OK FOR SERVICE.

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