What was found
CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: C792-4 PEGGED FULL DEFLECTION WITH POWER APPLIED.
**COULD NOT LOCATE A/C**
- Difficulty date
- September 19, 2020
- Submitted
- September 29, 2020
- Operation
- General aviation
- Filed by
- YV3R012M
Robinson Helicopter Company Inc - Make and model
- Robsin R44RAVENII
- Aircraft serial
- 11906
- Aircraft time
- 1,100 hours
- Engine
- Lyc IO540AE1A5
- System (JASC)
- 6240 · Main Rotor Indicating System
- Part
- Dual Tachometer
- Part number
- C7924
- Part serial
- 7128
- Condition
- Defective
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.