# SDR DXTA2025012302052

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2025
- Submitted: January 23, 2025
- Operation: Air carrier
- Aircraft: [N905QS](https://openairdocs.org/aircraft/N905QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0319
- Aircraft time: 3,006 hours, 1,975 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Seal
- Part number: 991448141
- Condition: Defective
- Location: Zone 800
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2025012302052

## Discrepancy

MAIN DOOR: REPEAT WRITE UP #2. SEE PREVIOUS DATED 01/19/2025.  DURING THE ARRIVAL AT 5000 FEET AND A CABIN PSID OF 2.3, ANOTHER LOUD SQUEAL STARTED TO HUM FROM SOMEWHERE ON THE MAIN CABIN DOOR.  THE SQUEAL/HUM STARTED AT 2.3 PSID AND GRADUALLY WAINED BELOW 2.1 PSID.  REFER TO THE NEXT WRITE UP, 52-10-08, MAIN DOOR VENT, TO SEE IF THERE IS A CORRELATION. CORRECTIVE ACTION: REPLACED MED SEAL. OPS CHECK GOOD. IAW CE-680A AMM 52-10-35

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