Service difficulty report · Apu · Boeing 737*

Difficulty date
November 5, 2005
Submitted
November 9, 2005
Operation
Air carrier
Aircraft
N851AM
Make and model
Boeing 737*
Aircraft serial
29363
Aircraft time
5,769 hours, 3,054 cycles
Engine
Ge CFM56*
Part
Apu
Condition
Failed
Location
Apu Bay
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

DURING ENGINES STARTING, THE PNEUMATIC AUXILIARY POWER UNIT FAILED. THE ENGINES WERE STARTED WITH EXTERNAL PNEUMATIC PLANT IAW MM 49-11-00, TESTED CORRECT. THE FIM PROCEDURE WAS PERFORMED IAW FIM 49-55 TASK 804, ALL CORRECT.