What was found
AIR TURNBACK/DECLARED EMERGENCY - COMPRESSOR STALL SUSPECTED ON NR 1 ENGINE DURING CLIMBOUT 11,000FT WITH THRUST LEVERS STABILIZED NO ABNORMAL INDICATOINS AFTER INITIAL STALL. REMOVED AND REPLACED NR 1 ENG HMU PER MM.
- Difficulty date
- November 16, 2011
- Submitted
- November 21, 2011
- Operation
- Air carrier
- Aircraft
- N417WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29822
- Aircraft time
- 35,429 hours, 20,648 cycles
- Engine
- Cfmint CFM567B22
- System (JASC)
- 7321 · Fuel Control/Turbine Engines
- Part
- Hmu
- Part number
- 442355
- Part serial
- CW1731
- Condition
- Faulty
- Location
- Nr 1 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- R
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.