What was found
WHILE DISASSEMBLING ENGINE TO PERFORM MODIFICATION TU 166 FOUND THE POWER TURBINE NOZZLE GUIDE VANE CRACKED. MODULE 3 MUST BE RETURNED TO MFG FOR REPAIR.
- Difficulty date
- December 5, 2011
- Submitted
- December 6, 2011
- Operation
- Air carrier
- Aircraft
- N551AM
- Make and model
- Snias AS350B3
- Aircraft serial
- 4311
- Aircraft time
- 2,326 hours, 5,100 cycles
- Engine
- Tmeca ARRIEL2B1
- Engine time
- 2,590 hours, 5,392 cycles
- System (JASC)
- 7250 · Turbine Section
- Part
- Guide Vane
- Part number
- 0292517060
- Condition
- Cracked
- Location
- Module 3
- Part time
- 2,590 hours, 5,392 cycles
- Component
- Module 3 · Tmeca · ARRIEL2B1
- Component part number
- 70BM032020
- Stage of operation
- IN
- How discovered
- W
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.