# SDR CALA2025032000490

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2025
- Submitted: March 20, 2025
- Operation: Air carrier
- Aircraft: [N45956](https://openairdocs.org/aircraft/N45956), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40918
- Aircraft time: 43,985 hours, 4,395 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Bottle
- Part number: 4443016000
- Condition: Ruptured
- Location: Cabin
- 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/CALA2025032000490

## Discrepancy

FOUND FOLLOWING PAX OXYGEN CYLINDER INDICATORS (RUPTURE) IN UNSATISFACTORY CONDITION.   ALL PAX OXYGEN CYLINDERS REMOVED FOUND CYLINDERS RUPTURE INDICATORS REPLACED FOUND SATISFACTORY HGR. REF TO NRC ELE0015/39557701 FOR DETAILS. SATISFACTORY IAW AMM 35-21-00. ALL MENTIONED PAX IAW CC 35-22-29. ALL MENTONED PAX OXYGEN CYLINDERS OXYGEN CYLINDERS WEIGHING CARRIED OUT FOUND WEIGHT RESTORED & INSTALLATON TEST CARRIED OUT FOUND SATIS WITHIN LIMITS IAW CMM 35-22-29.ALL MENTIONED PAX OXYGEN IAW AMM 35-21-00.

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