What was found
DURING CLIMBOUT, NR 4 ENG N2 SPEED WENT TO 0 FOLLOWED BY AN EGT OVERTEMP. FLIGHT CREW RETURNED ACFT. MX FOUND METAL IN THE TAILPIPE AND REPLACED ENGINE NR4.
- Difficulty date
- September 18, 2010
- Submitted
- September 20, 2010
- Operation
- Air carrier
- Aircraft
- N675NW
- Make and model
- Boeing 747451
- Aircraft serial
- 33001
- Aircraft time
- 38,700 hours, 4,949 cycles
- Engine
- Pwa PW4056
- Engine time
- 47,315 hours, 5,988 cycles
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Engine
- Condition
- Failed
- Location
- Nr 2
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- X, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.