What was found
CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ROTOR AND ENGINE NEEDLES JUMPS/BOUNCES ONCE IT REACHES 90%.
- Difficulty date
- September 12, 2019
- Submitted
- September 14, 2019
- Operation
- General aviation
- Filed by
- YV3R012M
Robinson Helicopter Company Inc - Make and model
- Robsin R44RAVENII
- Aircraft serial
- 11151
- Aircraft time
- 662 hours
- Engine
- Lyc IO540AE1A5
- System (JASC)
- 6240 · Main Rotor Indicating System
- Part
- Tachometer
- Part number
- C7924R
- Part serial
- 2730
- Condition
- Inaccurate
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.