What was found
NUMBER 1 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH LEAKING. REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW AMM 73-34-01-004-001 AND AMM 73-34-01-404-016 NO LEAK NOTED.
- Difficulty date
- January 20, 2026
- Submitted
- January 28, 2026
- Operation
- Air carrier
- Aircraft
- N563NC
- Make and model
- Boeing 7673BG
- Aircraft serial
- 30563
- Aircraft time
- 86,717 hours, 22,239 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Pressure Switch
- Condition
- Leaking
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.