# SDR ASAA2019072930247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2019
- Submitted: July 31, 2019
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 29,218 hours, 8,387 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 4735975
- Condition: Failed
- Location: Cargo Bay
- Stage of operation: TX
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019072930247

## Discrepancy

CARGO FIRE AFT RED LIGHT DOES NOT ILLUMINATE WHEN TEST BUTTON PRESSED. GROUNDED - YES. VERIFIED DISCREP. FOUND AFT CARGO PIT DETECTOR INOP. REMOVED/REPLACED DETECTOR B2 REF AMM 26-16-01. OPS NML REF. SAME.

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