# SDR DALA2023081806757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2023
- Submitted: August 18, 2023
- Operation: Air carrier
- Aircraft: [N693DL](https://openairdocs.org/aircraft/N693DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 29725
- Aircraft time: 79,164 hours, 31,005 cycles
- System (JASC): [5200 · Doors](https://openairdocs.org/jasc/5200)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023081806757

## Discrepancy

PRES/DIV/DE- DIV TO MTY DUE TO CABIN ALTITUDE WARNING. PERFORMED EMERGENCY DESCENT. NO PASSENGER OXYGEN MASKS DEPLOYED. CORRECTIVE ACTION: FOUND A BUILDUP OF DIRT /GREASE ON L1, L2, AND L3 DOOR SEALS/MATING SURFACES AND CLEANED THE SAME. (8/20 MSP) R/R O/H PANEL. C/W NO GO ODI CK OUTS.

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