What was found
MAIN ROTOR GEARBOX OIL TUBE HAS CORROSION CAUSED BY DISSIMILAR METALS USED IN MANUFACTURING PROCESS. REPLACED WITH SERVICEABLE PART.
- Difficulty date
- April 15, 2003
- Submitted
- June 30, 2003
- Operation
- Air carrier
- Aircraft
- N491PH
- Make and model
- Bell 407
- Aircraft serial
- 53386
- Aircraft time
- 3,360 hours
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Tube
- Part number
- 407040624101
- Part serial
- NA
- Condition
- Corroded
- Location
- Mrgb Oil Sys
- 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.