What was found
RT ENG FLUCTUATING 3-4 PERCENT N1 AND ASSOCIATED FLUCTUATIONS, ON EGT N2 AND F/F ON CLIMB-OUT POWER SETTINGS. AT LEVEL, CRUISE PWR SETTING RT N1 FLUCTUATES 2 PERCENT. REMOVED AND REPLACED NR 2 ENGINE HMU PER M/M. OPS CHECK OK.
- Difficulty date
- January 6, 2006
- Submitted
- January 10, 2007
- Operation
- Air carrier
- Aircraft
- N171DZ
- Make and model
- Boeing 767332
- Aircraft serial
- 29690
- Aircraft time
- 23,627 hours, 10,729 cycles
- Engine
- Ge CF680C2B6F
- Engine time
- 30,217 hours, 5,446 cycles
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 441789
- Part serial
- BECK3749
- Condition
- Malfunctioned
- Location
- Nr 2 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.