What was found
NEW STYLE EXHAUST SYS FAILURE AT ATTACHMENT POINTS WHERE RUBBER GROMMETS INSULATOR CONNECT TAIL PIPE. AFTER GROMMETS FAIL, THE MOVEMENT AND EXHAUST VIBRATION LEAD TO EXCESSIVE FIREWALL CRACKING.
- Difficulty date
- September 25, 2013
- Submitted
- September 25, 2013
- Operation
- Air carrier
- Aircraft
- N639NA
- Make and model
- Agusta AW139
- Aircraft serial
- 41326
- Aircraft time
- 299 hours
- Engine
- Pwc PT6C67C
- System (JASC)
- 7810 · Engine Collector/Tailpipe/Nozzle
- Part
- Grommet
- Condition
- Failed
- Location
- Zone 400
- Part time
- 299 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.