Service difficulty report · Control Valve · Boeing 767306

Difficulty date
January 2, 2020
Submitted
January 10, 2020
Operation
Air carrier
Aircraft
N647GT
Make and model
Boeing 767306
Aircraft serial
27611
Aircraft time
80,741 hours, 21,276 cycles
Part
Control Valve
Part number
97980612
Part serial
518C
Condition
Malfunctioned
Location
Apu
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

APU AUTO SHUTDOWN(<P>REMOVED AND REPLACED APU CONTROL UNIT (OFF PART: PN 2117342-20, SN 33-B0380) PER AMM 49-61-05, BUT NO HELP. ITEM DEFERRED PER MEL 49-11-01B, CAT 'B', MDDR #122862.</P><P>LOG PAGE 1105254 - M2: REPLACED SURGE CONTROL VALVE AND OPERATIONAL CHK FUNCTION NORMAL, IAW AMM 49-53-01. MEL AND MDDR 122862 CLOSED. PLACARD REMOVED.</P>)