What was found
THE RT PROP RPM GAUGE IS ERRATIC WHEN SET TO 1270 RPM. IT MOVES BETWEEN 1200-1270 RPM. ALL OTHER INDICATIONS NORMAL. REMOVED AND REPLACED PROP SPEED SENSOR PN 488T42P01 IAW CT7 MM 74-00-00 PGS 426-427. OPS CHECK GOOD. LEAK CHECK GOOD.
- Difficulty date
- March 27, 2006
- Submitted
- April 12, 2006
- Operation
- Air carrier
- Aircraft
- N427XJ
- Make and model
- Saab 340B
- Aircraft serial
- 340B427
- Aircraft time
- 19,782 hours, 21,771 cycles
- Propeller
- Rotol R3544123F13
- System (JASC)
- 6140 · Propeller Indication System
- Part
- Sensor
- Part number
- 488T42P01
- Condition
- Malfunctioned
- Location
- Propeller
- 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.