# SDR CALA2024032800894

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2024
- Submitted: March 28, 2024
- Operation: Air carrier
- Aircraft: [N69847](https://openairdocs.org/aircraft/N69847), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 42187
- Aircraft time: 29,270 hours, 10,420 cycles
- System (JASC): [2613 · Overheat Detection](https://openairdocs.org/jasc/2613)
- Part: Smoke Detector
- Part number: 4755712
- Condition: Dirty
- Location: Lavatory 1
- 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/CALA2024032800894

## Discrepancy

B737-26-3-0947, LAV T SMOKE DETECTOR SENSOR IS DIRTY. SPECIAL DIFFICULTY REPORT (SDR) IS REQUIRED. REMOVED AND REPLACED LAV T SMOKE DETECTOR IAW B737 AMM 26-14-01- 000-802, 26-14-01-400-802 OPS CK GOOD IAW B737 AMM 26-14-00-710- 802, 26-14-00-730-802.

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