What was found
WHEN ENGINE IS HOT, THERE IS A RUBBING SOUND IN ENGINE. RUMBLE SOUND WITH HIGH FREQUENCY WHEN RUNNING.
- Difficulty date
- October 3, 1996
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N3893S
- Make and model
- Bell 412
- Aircraft serial
- 33022
- Engine
- Pwa PT6T3B
- System (JASC)
- 7250 · Turbine Section
- Part
- Engine
- Part number
- 3017600
- Condition
- Rumble
- Location
- Power Sect
- Part time
- 13,757 hours
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.