Service difficulty report · Tube · Boeing 737990

Difficulty date
February 26, 2011
Submitted
March 3, 2011
Operation
Air carrier
Aircraft
N306AS
Make and model
Boeing 737990
Aircraft serial
30014
Aircraft time
36,137 hours, 14,126 cycles
Engine
Cfmint CFM567B26US
Engine time
33,456 hours, 14,422 cycles
Part
Tube
Part number
3400181030
Condition
Loose
Location
Nr 1 Hmu
Component
Engine
Component part number
CFM567B26
Stage of operation
CR
How discovered
O
Nature of condition
Y
Precautionary procedure
A

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

What was found

INITIAL CLIMBOUT LEVELOUT AT 350. NR 1 ENGINE FAIL LIGHT ROLL BACK. UNCOMMANDED SHUT DOWN IN FLT RETURNED TO SEA. FOUND LOOSE DISCHARGE TUBE ON HMU OF NR 1 ENGINE. REPLACED NR 1 ENGINE PER T/C 78471001 78471000 REF W/O 109776.