What was found
NR 1 PROPELLER ATTEMPTED TO FEATHER IN FLIGHT WITH AUTOFEATHER ARMED. TROUBLESHOT AND FOUND 2 BAD DIODES ON PCBA123. REPLACED DEFECTIVE PC BOARD WITH INSPECTED UNIT. OPS CHECKED GOOD. NO FURTHER OCCURRENCES.
- Difficulty date
- July 3, 2012
- Submitted
- July 10, 2012
- Operation
- Air carrier
- Aircraft
- N60MJ
- Make and model
- Beech 1900D
- Aircraft serial
- UE60
- Aircraft time
- 30,541 hours, 41,667 cycles
- Engine
- Pwc PT6C67D
- Engine time
- 23,326 hours, 29,150 cycles
- Propeller
- Hartzl HCE4N3
- System (JASC)
- 6123 · Propeller Feathering/Reversing
- Part
- Pcb
- Part number
- 1293640919
- Part serial
- 789J96
- Condition
- Failed
- Location
- Autofeather Sys
- Part time
- 6,000 hours, 8,500 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- S
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.