SDR SWAA097658

Service difficulty report · Hmu · Boeing 7377H4

Difficulty date: December 8, 2009
Submitted: December 10, 2009
Operation: Air carrier
Aircraft: N404WN
Make and model: Boeing 7377H4
Aircraft serial: 27892
Aircraft time: 31,380 hours, 18,123 cycles
Engine: Cfmint CFM567B22
System (JASC): 7320 · Fuel Controlling System
Part: Hmu
Part number: 442369
Part serial: BECW0462
Condition: Faulty
Location: Nr 2 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.

What was found

AIR TURNBACK / DECLARED EMERGENCY. CLIMBING THROUGH 17,000 FEET, A/C SIMULTANEOUSLY LOST AIRSPEED, YAWED RIGHT, AND NR 2 ENGINE EXPERIENCED COMPRESSOR STALL ACCOMPANIED BY BANGS. BROUGHT NR 2 THRUST LEVER TO IDLE. CHECKED TO SEE NORMAL ENGINE INDICATIONS. REMOVED AND REPLACED HMU PER MM.

More about the Boeing 737-7H4