What was found
PROPELLER RPM ON NR 2 ENGINE IN THE 1020 SETTING FLUCTUATE BETWEEN 1020 AND 1000 RPM. FOUND FAULT CODE 158 IN CDS. AS A PRECUATION REPLACED THE NR 2 OVERSPEED GOVERNOR. FAULT CODE DID NOT RETURN. RETURNED TO SERVICE.
- Difficulty date
- April 22, 2015
- Submitted
- April 27, 2015
- Operation
- Air carrier
- Aircraft
- N408QX
- Make and model
- Bombdr DHC8402
- Aircraft serial
- 4050
- Aircraft time
- 33,375 hours, 34,774 cycles
- Engine
- Pwc PW150A
- Propeller
- Dowty R4086123F17
- System (JASC)
- 6122 · Propeller Governor
- Part
- Governor
- Part number
- 697072004
- Part serial
- DAP0391
- Condition
- Malfunctioned
- Location
- Overspeed
- Part time
- 19,249 hours, 20,650 cycles
- 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.