What was found
LEFT ENGINE VIBRATIONS SEEM STUCK AT ZERO ALL CHANNELS. DEFERRED L ENG VIBRATION INOP PER MEL 77-31-01. REMOVED AND REPLACED AVM SIGNAL CONDITIONER IAW AMM 77-31-03.
- Difficulty date
- April 8, 2025
- Submitted
- April 15, 2025
- Operation
- Air carrier
- Aircraft
- N566NC
- Make and model
- Boeing 7673BG
- Aircraft serial
- 30566
- Aircraft time
- 77,741 hours, 20,028 cycles
- Engine
- Pwa PW4060
- Engine time
- 2,228 hours, 897 cycles
- System (JASC)
- 7732 · Engine Vibration Analyzer
- Part
- Signal Cond Unit
- Part number
- 6672M850
- Part serial
- AF15
- Condition
- Failed
- Location
- Zone 100
- Part time
- 3,369 hours, 1,362 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.