Service difficulty report · Sensor · Boeing 737890

Difficulty date
February 18, 2008
Submitted
February 25, 2008
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
6,428 hours, 1,851 cycles
Part
Sensor
Part number
ZR2A
Condition
Faulty
Location
Tail Compartment
Stage of operation
IN
How discovered
C
Nature of condition
O
Precautionary procedure
K

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

What was found

AUTOLAND "LAND VERIFY" TEST FAILS 49.35 BITE. FCC "B" FAULTS ELEV POS SEN 2 MSG 22 11126. REPLACED ELEVATOR POSITION SENSOR 2. RIG AND SENSOR TESTS ALL CHECK GOOD. LAND VERIFY PASSES 49.35 BUT NOW FAILS 49.32 WITH SAME FAULT (ELEV POS SEN 2). REPLACED NSS. LAND VERIFY OP CHECKS PASS.