Service difficulty report · Valve · Boeing 7673JHF

Difficulty date
August 10, 2020
Submitted
August 18, 2020
Operation
Air carrier
Aircraft
N643GT
Make and model
Boeing 7673JHF
Aircraft serial
37809
Aircraft time
18,045 hours, 4,919 cycles
Part
Valve
Part number
97980612
Part serial
3631
Condition
Malfunctioned
Location
Apu
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

APU PNEUMATIC FUNCTION INOP (AUXILIARY POWER UNIT, PNEUMATIC FUNCTION)(<P>TRANSFERRED TO MEL 49-11-01-01, MDDR 132671 RAISED, CAT 'C'.<BR /></P><P>LP 1131759 ITEM 7: IAW AMM 49-53-01/401 REMOVED & REPLACED SURGE CONTROL VALVE AND APU BLEED SYSTEM NORMAL WITH ENGINE MOTORING (N2 2906, DUCT PRESSURE 35PSI), ITEM CLOSED DMI #132671.<BR /></P>)

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