# SDR ABXA20260627292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2026
- Submitted: June 29, 2026
- Operation: Air carrier
- Aircraft: [N673AZ](https://openairdocs.org/aircraft/N673AZ), registered now
- Make and model: Boeing 767-300
- Registry model: [Boeing 767-300](https://openairdocs.org/model/boeing-767-300) (OpenAirDocs)
- Aircraft serial: 67025
- Aircraft time: 11,715 hours, 1,963 cycles
- System (JASC): [2340 · Interphone/Passenger Announcement (PA) System](https://openairdocs.org/jasc/2340)
- Part: Interphone
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: O
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260627292

## Discrepancy

OXYGEN MASK INTERPHONE SYSTEM WILL NOT TEST ON GROUND. WILL NOT WORK WHEN SPEAKING DIRECTLY INTO OXYGEN MASK WITH THE PTT SWITCH IN THE "INT" POSITION. CAPT'S AND FO'S OXYGEN MASK INTERPHONE NOT WORKING. SWAPPED CAPTAIN & C SUPERNUMERARY, O2 BOX & MASK IAW AMM 35-11-51. OPS CHECK GOOD. SWAPPED F/O & L SUPER NUMERARY O2 BOX & MASK IAW AMM 35-11-51. OPS CHECK GOOD.  L AND CTR SUPERNUMARY SEAT O2 MASK MICS DEFFERED IAW MEL ABX-25-25-3. A/C RETURNED TO SERVICE.

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