Service difficulty report · Hmu · Boeing 737990ER

Difficulty date
October 6, 2015
Submitted
October 6, 2015
Operation
Air carrier
Aircraft
N457AS
Make and model
Boeing 737990ER
Aircraft serial
36355
Aircraft time
6,554 hours, 2,122 cycles
Engine
Cfmint CFM567B27E
Part
Hmu
Part number
442653
Part serial
BECWB546
Condition
Failed
Location
Nr 2 Engine
Part time
6,554 hours, 2,122 cycles
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

NR 2 ENGINE HAS HISTORY OF FMV SIGNAL OUT OF RANGE. ACFT GROUNDED. R & R NR 2 ENGINE HMU REF MM 71-00-00-700-822, W/C N8473000, N8473001. OPS CHECK, LEAK CHECK GOOD.