# SDR CALA2026052516510

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2026
- Submitted: May 25, 2026
- Operation: Air carrier
- Aircraft: [N38473](https://openairdocs.org/aircraft/N38473), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 38702
- Aircraft time: 40,867 hours, 14,887 cycles
- System (JASC): [2621 · Fire Bottle, Fixed](https://openairdocs.org/jasc/2621)
- Part: Tube
- Part number: 364A31015
- Condition: Cracked
- Location: Zone 400
- 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/CALA2026052516510

## Discrepancy

LH ENGINE FIRE SUPPRESSION TUBE IS SHEARED.  LOCATED APPROX 9" INBD OF ENG AFT PYLON FAIRING REMOVED AND REPLACED LEFT ENGINE AFT FIRE SUPPRESSION TUBE THAT RUNS THRU PANEL 551GB IAW BOEING DRAWING 272A3101-13 REV B AND AMM 26-21-00-720-801.

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