What was found
DURING ROUTINE FIELD MAINTENANCE INSPECTIONS, A CRACK WAS DISCOVERED UNDER NR 2 INPUT (ARM PIT) APPROXIMATELY 6 INCHES LONG FROM APPROXIMATELY THE 5 TO 8 OCLOCK POSITION. THIS WAS VERIFIED BY FPI. PROBABLE CAUSE IS UNKNOWN.
- Difficulty date
- March 10, 2004
- Submitted
- June 2, 2004
- Operation
- Air carrier
- Aircraft
- N159AC
- Make and model
- Skrsky CH54B
- Aircraft serial
- 64084
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Housing
- Part number
- 643520017019
- Part serial
- 217
- Condition
- Cracked
- Location
- Mgb
- 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.