# SDR CALA2010111600574

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2010
- Submitted: November 16, 2010
- Operation: Air carrier
- Aircraft: [N12109](https://openairdocs.org/aircraft/N12109), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27299
- Aircraft time: 62,079 hours, 16,156 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Part number: 417T4205193
- Condition: Cracked
- 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/CALA2010111600574

## Discrepancy

SUPPORT TASK - ROW 30D O2 MASK AT FLOW INDICATOR, FOUND STRESS CRACKS AT CENTER WELD OF INDICATOR.  PB 174080-193 REV D, CUST 417T4205-193.  MFG DATE 3-94 TO 8-94.  REPLACED O2 MASK PER MM 35-21-05.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.