# SDR F3LA99109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N217US](https://openairdocs.org/aircraft/N217US), registered now
- Make and model: Boeing 737201
- Aircraft serial: 20215
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Mask
- Condition: Did Not Deploy
- Location: Cabin
- Part time: 71,507 hours
- Stage of operation: NR
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA99109

## Discrepancy

DEN - DURING DEMONSTRATION, FLIGHT CREW REPORTED OXYGEN MASKS DID NOT DEPLOY.  MAINTENANCE PERFORMED AN OPERATIONAL CHECK OF THE PASSENGER OXYGEN SYSTEM MANUAL ACTIVATION PER MM 35-21-00A AND CHECKED OKAY.  TC:  88,247.  (X)

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