Service difficulty report · Unknown · Boeing 737890

Difficulty date
February 14, 2010
Submitted
February 17, 2010
Operation
Air carrier
Aircraft
N558AS
Make and model
Boeing 737890
Aircraft serial
35177
Aircraft time
13,890 hours, 3,995 cycles
Part
Unknown
Condition
Malfunctioned
Location
Autopilot Sys
Stage of operation
LD
How discovered
O
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

DURING 30 DAY EVAL AUTOLAND WAS UNUSUALLY FAR TO THE LEFT OF CENTERLINE, ABOUT HALF WAY BETWEEN CENTERLINE AND RUNWAY EDGE. SLIGHT TAILWIND (040/6) AND GROUND CONTROLLER VERIFIED PROTECTED AREA WAS CLEAR. AUTOTHROTTLES SEEMED TO LAG TO IDLE AND A/C "HUNTED" FOR TOUCHDOWN SPOT. FFR REVEALED NO RELEVANT FAULTS. PERFORMED ALL EXTENDED MAINTENANCE BITE TESTS REF MM 22 11 00, NO FAULTS FOUND. AUTOTHROTTLES LOGGED NO INFLIGHT FAULTS AND CURRENT STATUS TEST PASSED REF MM 22 31 00. HGS SENSOR TEST FOR MMR/ILS AND HGS SYSTEM TEST PASSED REF SMM 34 36 00.