# SDR CALA2015072894160

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2015
- Submitted: July 28, 2015
- Operation: Air carrier
- Aircraft: [N644UA](https://openairdocs.org/aircraft/N644UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25094
- Aircraft time: 100,172 hours, 15,702 cycles
- Engine: Pwa PW4060
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Lanyard
- Condition: Missing
- Location: Oxygen Mask
- 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/CALA2015072894160

## Discrepancy

DURING OXYGEN MASK MANUAL DROP TEST, THE AFT RIGHT FLIGHT ATTENDANT MASKS DROPPED & IT WAS NOTED THAT THE ACTIVATION LANYARD WAS MISSING & THAT THE MASK LANYARD RINGS WERE NOT ATTACHED TO THE OXYGEN GENERATOR FIRING PIN.  IAW AMM 35-21-00 STEP 2E.  INSTALLED ACTIVATION LANYARD & SECURED MASK RINGS IAW AMM 35-21-10.

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