# SDR CALA2026012613259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2026
- Submitted: January 27, 2026
- Operation: Air carrier
- Aircraft: [N66831](https://openairdocs.org/aircraft/N66831), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 44562
- Aircraft time: 35,782 hours, 13,002 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: NR
- 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/CALA2026012613259

## Discrepancy

CHEMICAL ODOR IN FLT DECK ON TAKE OFF & APPROACH 0 TO 14000FT. NO ODOR WITH PACK 1 OFF.  ACCOMPLISHED INITIAL INSPECTION OF LT ECS PACK BAY, NO DEFECT NOTED,  INSPECTED APU INLET, EXHAUST AND INTERIOR COMPT,  NO DEFECT NOTED,  ENG INLET & EXHAUST, FWD ACCESSORY & E & E BAY, NO DEFECT NOTED , RUN PACKS WITH APU BLEED FOR 1 HR & THEN WITH ENGINE BLEED FOR 15 MINS AT IDLE , NO CHEMICAL OR ANY OTHER ODOR DETECTED, COULD NOT DUPLICATE FAULT IAW AMM TASK 05-51-26-800-801-C1.

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