# SDR DALA2021020800728

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2021
- Submitted: February 8, 2021
- Operation: Air carrier
- Aircraft: [N868DN](https://openairdocs.org/aircraft/N868DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31978
- Aircraft time: 13,750 hours, 5,058 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021020800728

## Discrepancy

(LOG 7489532) ODOR ON TO ROLL TILL ABOUT 8000' STRONGER ODOR ON DESCENT AROUND 20,000' WENT AWAY AROUND 6000'. T/S PER B737 FIM 21-00-00-810-804, NEVER DID DETECT ANY ABNORMAL ODOR. HYD LEVEL WAS NORMAL, NO ENG OIL LKS NOTED. PER MCC REQUEST REPLACED EQUIPMENT COOLING FILTER (WAS VERY DIRTY) PER B737 AMM 21-27.

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