What was found
F/O O2 MASK MICROPHONE DOES NOT TRANSMIT TO F/O SPEAKER. REMOVED AND REPLACED RNP. OPS CHECKED GOOD. O2 MASK TRANSMITS NORMALLY.
- Difficulty date
- January 6, 2013
- Submitted
- January 18, 2013
- Operation
- Air carrier
- Aircraft
- N548UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25396
- Aircraft time
- 79,454 hours, 22,955 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2300 · Communications System
- Part
- Microphone
- Condition
- Inoperative
- Location
- O2 Mask
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.