SDR SWAA991353

Service difficulty report · Hmu · Boeing 7377H4

Difficulty date
August 12, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N704SW
Make and model
Boeing 7377H4
Aircraft serial
27838
Engine
Cfmint CFM567B22
Part
Hmu
Part number
1853M56P06
Condition
Failed
Location
Nr 2 Engine
Stage of operation
CL
Nature of condition
E
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CLIMB WITH 99.7 PERCENT N1 POWER EXPERIENCED ENGINE VIBRATION, NR 2 ENG THRUST LEVER ALSO VIBRATED, REDUCED N1 TO 99 PERCENT AND VIBRATION WENT AWAY. REMOVED AND REPLACED NR 2 ENG HMU PER MM.

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