# SDR CALA2026080218157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2026
- Submitted: August 3, 2026
- Operation: Air carrier
- Aircraft: [N14121](https://openairdocs.org/aircraft/N14121), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27563
- Aircraft time: 91,389 hours, 22,067 cycles
- Engine: Rroyce RB211535E4B3
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6457053
- Part serial: 1125
- Condition: Faulty
- Location: Zone 100
- Part time: 83,588 hours, 18,335 cycles
- 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/CALA2026080218157

## Discrepancy

STRONG FUME/ODOR IN FLIGHT DECK.   PERFORMED CONDITIONAL INSPECTION IAW AMM 05-51-58. UNABLE TO FIND SUSPECTED CAUSE, AND COULD NOT DUPLICATE FUME CONDITION AFTER AIRCRAFT WAS DEBOARDED.  AS A PERCAUTION,  REMOVED AND REPLACED LT RECIRCULATION FAN IAW MM 21-25-01-404-094. OPS TESTED OK.  R & R THE FAN,  R & R EQUIPMENT FILTER IAW AMM 21-58-21. PERFORMED PACK BURN, NO ODOR NOTED.

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