Service difficulty report · Relay · Boeing 737890

Difficulty date
August 1, 2012
Submitted
August 17, 2012
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
13,876 hours, 4,283 cycles
Engine
Cfmint CFM567B273
Part
Relay
Part number
91238071
Condition
Failed
Location
Stab Trim
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

AUTOPILOT A OR B WILL NOT ENGAGE INFLIGHT. ACFT GROUNDED. TROUBLESHOT TO STAB TRIM RELAY R64, REPLACED SAME. DFCS LIBRARY TEST 32 AND LAND VERIFY GO, ACFT REMAINS CAT III AUTOLAND/HGS. SCREW REFLECTS SAME.