What was found
DURING CRUISE, LEFT PROPELLER DROPPED FROM 1230-1100 RPM, FOLLOWED BY A DROP FROM 1230-800 RPM TWICE WAS NOT AN INDICATION EVENT, RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. REPLACED PROPELLER SPEED INDICATOR AND SPEED SENSOR.
- Difficulty date
- June 6, 2014
- Submitted
- June 9, 2014
- Operation
- Air carrier
- Aircraft
- N347AG
- Make and model
- Saab 340B
- Aircraft serial
- 340B447
- Aircraft time
- 30,572 hours, 34,025 cycles
- System (JASC)
- 6140 · Propeller Indication System
- Part
- Sensor
- Part number
- 4088T42P01
- Part serial
- SIMT1777
- Condition
- Malfunctioned
- Location
- Propeller Speed
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.