Service difficulty report · Sensor · Boeing 737823

Difficulty date
October 16, 2015
Submitted
October 19, 2015
Operation
Air carrier
Aircraft
N901AN
Make and model
Boeing 737823
Aircraft serial
29503
Aircraft time
49,413 hours, 20,032 cycles
Part
Sensor
Condition
Failed
Location
Le Slat
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

ON APPROACH, EXTENDING FLAPS FROM 2 - 5 FLAPS STOPPED AT JUST BEYOND 2 DEGREES. SYMMETRICAL AT ALL TIMES. FLAPS EXTENDED TO 15 USING ALTERNATIVE FLAP SWITCH. FLIGHT DECLARED AN EMER & LANDED NORMAL. NO FLAP OVER SPEED THROUGHOUT. ACFT WAS REMOVED FROM SERVICE. FOUND LE4 SENSOR S175 OUT OF TOLERANCE. REPLACED S175 SENSOR. REQUIRED TESTS PASSED IAW MM 27-88-11.