# SDR CALA2026031014458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2026
- Submitted: March 10, 2026
- Operation: Air carrier
- Aircraft: [N77542](https://openairdocs.org/aircraft/N77542), registered now
- Make and model: Boeing 737824
- Aircraft serial: 63647
- Aircraft time: 26,232 hours, 9,900 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: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026031014458

## Discrepancy

LEFT PACK EMITS BAD ODOR ON TAKEOFF.  CYCLED LEFT PACK AND RIGHT SEPERATELY ON AUTO AND HIGH FROM COLD TO HOT IAW AMM 21-00-00-800-803. NO ODOR DETECTED IN FLIGHT DECK NOR CABIN. SUSPECT ODOR DISSIPATED. OKAY TO COMTINUE AT THIS TIME.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.