# SDR USAA2012040300006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2012
- Submitted: April 3, 2012
- Operation: Air carrier
- Aircraft: [N438US](https://openairdocs.org/aircraft/N438US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24560
- Aircraft time: 58,722 hours, 39,095 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Nut Clip
- Condition: Not Seated
- Location: L1 Door
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012040300006

## Discrepancy

CREW REPORTED THE L1 DOOR WAS VERY DIFFICULT TO CLOSE AND THE DOOR SQUEALS VERY LOUDLY WHEN PRESSURIZED.  MAINTENANCE TROUBLESHOT AND FOUND THE L1 DOOR FRAME TRIM PANEL CLIP NUT NOT ENGAGED CORRECTLY CAUSING A RAISED AREA FOR SEAL TO SEAT.  RESEATED CLIP NUT AND PRESSURIZED AIRCRAFT TO 4 PSI.  NO LOUD SQUEALS NOTED.  OPS CHECK OF L1 DOOR CHECKS OK - REF: AMM 52-11-00-501.

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