What was found
WHILE DOING T/C 78472022, FOUND 2 LPT NOZZLE GUIDE VANES AT 4 O'CLOCK & 7 O'CLOCK POSITION EACH WITH 1 AXIAL CRACK. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- October 7, 2023
- Submitted
- October 11, 2023
- Operation
- Air carrier
- Aircraft
- N459AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36352
- Aircraft time
- 35,684 hours, 11,193 cycles
- System (JASC)
- 7250 · Turbine Section
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- B
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.