What was found
GROWLING OR LOUD HOWLING NOISE COMING FROM ENGINE AREA FLUCTUATING WITH POWER CHANGES. VIBRATION TRANSMITTING THROUGH ACFT.
- Difficulty date
- March 10, 2009
- Submitted
- March 11, 2009
- Operation
- General aviation
- Aircraft
- N451F
- Make and model
- Urocop EC120B
- Aircraft serial
- 1124
- Aircraft time
- 8,627 hours, 7,729 cycles
- Engine
- Tmeca ARRIUS2F
- Engine time
- 169 hours, 58 cycles
- System (JASC)
- 2435 · Starter-Generator
- Part
- Starter Gen
- Part number
- 160SG140Q
- Part serial
- 2042
- Condition
- Worn
- Location
- Engine
- Part time
- 1,422 hours, 900 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.