Service difficulty report · Control Unit · Boeing 7673S1

Difficulty date
December 18, 2018
Submitted
December 19, 2018
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
87,554 hours, 18,608 cycles
Part
Control Unit
Part number
211734220
Part serial
601375
Condition
Not Reported
Location
Apu
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

PER COMPANY CONVENIENCE REQUEST - REMOVE AND REPLACE APU CONTROL UNIT (<P>REMOVED AND REPLACED APU CONTROL UNIT IAW B767 AMM 49-61-05 OPS CHECK NORMAL AT THIS TIME</P><P>(NOTE: DUE 02 EVENTS ON GND APU AUTO-SHUTDOWN - TS POINTED TO APU ECU)</P><P>(NOTE2: DDG 25-AP-01 MDDR 104760 - WAS OPENED FOR APU COLD SOAK START VERIFICATION IAW ETOPS MX MANUAL) </P>)

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