# SDR DALA2021042702428

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2021
- Submitted: April 27, 2021
- Operation: Air carrier
- Aircraft: [N817DN](https://openairdocs.org/aircraft/N817DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31929
- Aircraft time: 23,808 hours, 9,066 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Light
- Condition: False Activation
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021042702428

## Discrepancy

SHIP 3817 -ATB/PRESS- RETURNED DUE TO CABIN ALT WARNING LIGHT AND HORN ACTIVATED AFTER TAKEOFF. CORRECTIVE ACTION: PERFORMED LT-RT DCPC BITE CHECK PER B737 AMM. LAST FLIGHT SHOWED LO-INFLO. TEST SHOWED NO FAULTS. OPS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.

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