Service difficulty report · Unknown · Boeing 737890

Difficulty date
July 3, 2011
Submitted
July 7, 2011
Operation
Air carrier
Aircraft
N590AS
Make and model
Boeing 737890
Aircraft serial
35687
Aircraft time
12,984 hours, 4,070 cycles
Part
Unknown
Condition
Malfunctioned
Location
Autoland 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

AUTOLAND TOUCHED DOWN APPX IN LINE WITH LEFT HASH MARK OF RUNWAY WHILE CORRECTING TO THE RIGHT. PERF'D DFCS CURRENT STATUS TEST REF AMM 22 11 00 NO FAULTS BUT FLIGHT FAULT REVIEW REVEALED BOTH A/P'S WITH "VOR/LOC BEAM ANOMALY DETECTED" DURING APPCH/FLARE. ACCOMPLISHED DFCS GP 49 LAND VERIFY TESTS AND HGS TESTS REF AMM 22 11 00 AND 34 36 00 OPS CHECK NORMAL. UPGRADED AIRCRAFT LWMP STATUS TO CAT 3A AUTOLAND AND HGS MOVED CAT STATUS SCREW TO SAME. CHECKED CHRONIC AND REPETITIVE MALFUNCTION NO FAULTS.