Service difficulty report · Sensor · Boeing 7378

Difficulty date
January 18, 2024
Submitted
January 19, 2024
Operation
Air carrier
Aircraft
N37305
Make and model
Boeing 7378
Aircraft serial
67560
Aircraft time
2,003 hours, 776 cycles
Part
Sensor
Part number
878802
Condition
Faulty
Location
Nr 2 Slat
Stage of operation
DE
How discovered
O
Nature of condition
F, J
Precautionary procedure
B

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

What was found

LE DEVICES TRANSIT LIGHT STAYS ON SLATS 2 LE FLAPS TRANSIT LT ON LE SLAT 2 LT OVRHD QRH DID NOT FIX AHM DATA SHOWS FAULTS ON LE SLAT 2 AND LE SLAT 4 RETRACT SENSORS. LOCKING. UNLOCKED FOR SIGNOFF. T/S PER WDM 27-81-12-1 , FOUND OPEN BETWEEN S1094 AND PLUG D728A. DISCONNECTED SWITCH S1094, AND CLEANED CONNECTOR D10588. JUMPED PINS 1 AND 2 OF PLUG D10589, AND RECHECKED RESISTANCE BETWEEN D10589 AND PLUG D728A AND FOUND 4 OHMS. RECONNECTED SWITCH S1094 TO SYSTEM, AND BITE CHECKED FSEU, ALL CHECKS GOOD, NO DEFECTS NOTED. PARTS USED: 29-2788-3-0001,QTY :1.

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