# SDR CALA2026020413579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2026
- Submitted: February 4, 2026
- Operation: Air carrier
- Aircraft: [N37313](https://openairdocs.org/aircraft/N37313), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67568
- Aircraft time: 9,654 hours, 3,326 cycles
- System (JASC): [2530 · Buffet/Galleys](https://openairdocs.org/jasc/2530)
- Part: Oven
- Part number: 4315750000000
- Part serial: N23020219AA2
- Condition: Faulted
- Location: Zone 900
- Part time: 8,656 hours, 2,926 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026020413579

## Discrepancy

LOUD SQUEALING NOISE FROM SOMEWHERE IN AFT GALLEY.  NOISE STARTED  DURING CLIMBOUT.   INSPECTED AFT GALLEY AREA & FOUND NR 3 OVEN VENT FAN VERY NOISY.  DEACTIVATED AND DEFERRED OVEN IAW NEF 2500BI & NOISE RETURNED TO NORMAL LEVELS.  CABIN PRESSURE LEAK TEST PERFORMED IAW 05-51-91 790-801 USING APU AIR WITH NO DEFECTS OR ABNORMAL NOISES NOTED.  APU BLEED USED WITH NO DEFECTS NOTED.  CHECKED ALL AFT GALLEY, AFT LAV DRAINS & TOILETS WITH NO DEFECTS OR ABNORMAL NOISES NOTED.  AFT GALLEY NR 3 OVEN DEFERRED.  PERFORMED OPS CHECK OF ALL 3 AFT GALLEY OVENS IAW AMM 25-32-03,  FOUND OVEN AT POSITION G43 TO HAVE A VERY LOUD SQUEAL.

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