Service difficulty report · Pressure Switch · Boeing 757236

Difficulty date
August 30, 2009
Submitted
August 31, 2009
Operation
Air carrier
Aircraft
N526NA
Make and model
Boeing 757236
Aircraft serial
24794
Aircraft time
56,842 hours, 21,032 cycles
Part
Pressure Switch
Part number
211C223320
Part serial
366419
Condition
Failed
Location
Lt Truck
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AFTER LIFTOFF PROBE HEAT, TAT AND AUTO THRUST EICAS MESSAGES APPEARED. T/S AIR/GND DISAGREE PER FIM 32-09-00 FIGURE 104 PAGE 114, 115, FIG 105 PAGES 116, 117, FIG 106 PAGE 118, FIG 107 PAGE 119. PERFORMED AIR/GROUND RELAY SYSTEM CHECK PER 32-09-02. PSEU BITE PER FIM 32-09-03 FOUND LEFT TRUCK POSITIONER PRESSURE SWITCH FAULTY. REMOVED AND REPLACED PRESS SWITCH PER MM 32-32-18. OPS CHECK NORMAL AT THIS TIME PER ALL FIMS AND MM ABOVE.