What was found
CUSTOMER REPORTED DUAL TACHOMETER P/N: A792-4 IS DEFECTIVE. BENCH TEST RESULTS; AFTER UNIT WARMS UP, NEEDLES DROP 3%.
- Difficulty date
- October 14, 2019
- Submitted
- October 23, 2019
- Operation
- General aviation
- Filed by
- YV3R012M
Robinson Helicopter Company Inc - Make and model
- Robsin R22BETAII
- Aircraft serial
- 4173
- Aircraft time
- 2,198 hours
- Engine
- Lyc O360J2A
- System (JASC)
- 6240 · Main Rotor Indicating System
- Part
- Tachometer
- Part number
- A7924
- Part serial
- 3989
- Condition
- Malfunctioned
- 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.