Service difficulty report · Sensor · Boeing 767322

Difficulty date
May 19, 2021
Submitted
May 19, 2021
Operation
Air carrier
Aircraft
N649UA
Make and model
Boeing 767322
Aircraft serial
25286
Aircraft time
115,274 hours, 17,797 cycles
Part
Sensor
Condition
Faulted
Location
Lt Slat Sys
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
B

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

What was found

ON APP ICAS LE SLAT ASSY MESSAGE ON ICAS COMPLIED WITH QRH AND L ANDED BIT THE FSEU AND FOUND THE FOLLOWING FAULT: LE OUTBD ASYM MSG NO. 27-81021. FDE LE ASYM LATCHED. PRIMARY A/S <90 A-A02 FR PSEU, IB SLAT +1.21V, OB SLAT +5.54V, LRV POS -2.33V. INTERROGATED PSEU AND GOT 302 FAULT, (R SLAT #10 INBD). RETRACTED FLAPS ELECTRICALLY AND HAVE SAME FAULT ON FSEU. AND MESSAGE WENT AWAY. LOWERED FLAPS AND MESSAGE CAME BACK. LE WILL NOT RETRACT HYDRAULICALLY. RETRACTED LE ELECTRICALLY REMOVED AND REPACED #10 SLAT INBOARD S302 SENSOR, ADJUSTED SCENSOR SWITCH AND RETRACT TARGET PER AMM 27-88-01-902-001.