What was found
(CAN) ON GEAR BOX INSTALLATION, THE FEMALE THREADS GAVE WAY AS LUBE FITTING WAS TIGHTENED. ACFT HAS DEVELOPED AN OPTIONAL REPLACEMENT PART WITH A STEEL INSERT TO PREVENT SUCH OCCURRENCE FROM HAPPENING, REF SB 61B35-50.
- Difficulty date
- February 12, 2014
- Submitted
- September 14, 2015
- Operation
- General aviation
- Make and model
- Skrsky S61N
- Aircraft time
- 40,604 hours
- Engine
- Ge CT58*
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Sleeve
- Part number
- S6135296191
- Condition
- Worn
- Location
- M/R Gearbox
- 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.