# SDR DL76L002256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2000
- Submitted: November 21, 2000
- Operation: Air carrier
- Aircraft: [N172DN](https://openairdocs.org/aircraft/N172DN), registered now
- Make and model: Boeing 767332
- Aircraft serial: 24775
- Aircraft time: 50,229 hours, 7,693 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Generator
- Condition: Faulty
- Location: Cabin Oxygen
- 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/DL76L002256

## Discrepancy

EMERGENCY OXYGEN GENERATOR/3 PERSON PURITAN P/N 117003-13, BOEING P/N S417T401-26  MFG DATE 6-89 LOT NUMBER 346.  WHILE PERFORMING A ROUTINE REPLACEMENT, THE CANISTER WOULD NOT FIRE BY IT''S OWN MEANS.  THE TRIGGERING MECHANISM DID NOT FIRE IT.  IT HAD TO BE MADE SAFE BY USING A PUNCH AND A HAMMER TO FIRE IT.

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