Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
January 19, 2019
Submitted
January 23, 2019
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
13,157 hours, 4,266 cycles
Part
Autoland Sys
Condition
Malfunctioned
Location
Cockpit
Stage of operation
AP
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

ATTEMPTED AUTOLAND PER REQUEST ON RELEASE. AIRCRAFT MAINTAINED GLIDESLOPE AND INITIAL FLARE BUT WAS ALIGNING ON FAR RIGHT SIDE OF RUNWAY 24R W/ PROPORTIONAL LOCALIZER DEVIATION. WINDS WERE LIGHT & VARIABLE AND CRITICAL AREA WAS PROTECTED. TURNED OFF AUTOPILOT IN FLARE AND CORRECTED TOWARDS CENTERLINE. HGS OPERATED NORMALLY. GROUNDED - YES. ACCOMPLISHED LAND VERIFY TESTS REF AMM 22-00-01. PASSES ALL TESTS. AUTOLAND TESTS OPS CHECK GOOD. LWMP STATUS AUTHORIZED TO CAT 111A AUTOLAND & HGS. HGS SYSTEM PASSES ALL TESTS. REF AMM 34-36-00.