What was found
DURING 60 MONTH INSPECTION FOUND PITTING ON OUTPUT SHAFT ABOUT 4 INCHES INBD FROM END OF SHAFT. SHAFT DETERMINED TO BE UNSERVICEABLE.
- Difficulty date
- April 2, 2012
- Submitted
- May 4, 2012
- Operation
- General aviation
- Aircraft
- N407LG
- Make and model
- Bell 407
- Aircraft serial
- 53143
- System (JASC)
- 6520 · Tail Rotor Gearbox
- Part
- Shaft
- Part number
- 407040416103
- Condition
- Corroded
- Location
- T/R Gb Output
- Part time
- 3,687 hours
- Component
- Gearbox · Bell
- Component part number
- 407040400117FM
- 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.