SDR UIEA2020100862174

Service difficulty report · Pressure Switch · Boeing 76736N

Difficulty date: October 5, 2020
Submitted: October 8, 2020
Operation: Air carrier
Aircraft: N1093A
Make and model: Boeing 76736N
Aircraft serial: 30111
Aircraft time: 82,434 hours, 12,008 cycles
System (JASC): 2820 · Aircraft Fuel Distribution System
Part: Pressure Switch
Part number: 21C1321
Part serial: TLS25893
Condition: Malfunctioned
Location: Fuel System
Stage of operation: NR
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

LEFT AFT FUEL PUMP EICAS ILLUMINATED WITH LEFT AFT FUEL PRESS FLICKERS. PERFORMED FIM 28-22-43819. UNABLE TO DUPLICATE EICAS MESSAGE. LEFT AFT FUEL PRESS LIGHT FLICKERS. INSTALLED DMI 135536, IAW MEL 28-42-01-01. M/P C/W. MCC EC 1012 DISP JD 1012. RIV MX, 05OCT. REMOVED AND REPLACED LEFT AFT FUEL PRESSURE SWITCH, IAW 28-42-01. OPS CHECK GOOD, LEAK CHECK GOOD. DMI NR 135536 CLEARED. LC @ 1750Z.

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