Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
April 29, 2016
Submitted
May 2, 2016
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
10,058 hours, 3,226 cycles
Part
Autoland Sys
Condition
Malfunctioned
Stage of operation
LD
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

HGS AIII & AUTOLAND UNSUCCESSFUL. ACFT TOO FAR LT OF PRODECTED LOCALIZER CENTERLINE ALSO FLAIR RATE SEEMED LATE AND SLOW. NO FAILURES ANNUNCIATED. PERFORMANCE OF AUTOLAND UNSUCCESSFUL. RT MLG WAS WELL LT OF CENTERLINE. ACFT LANDED TOO FAR LT OF CENTERLINE. ACFT GROUNDED. ACCOMPLISHED ILS OPS TEST, OPS NORMAL REF AMM 34-31-00-710-801. ACCOMPLISHED FLT FAULTS REVIEW, GRP BITE 20, NO CURRENT FAULTS. ACCOMPLISHED LAND VERIFY TEST, GRP 49, ALL TEST PASSED, REF AMM 22-11-00/201. ACCOMPLISHED HGS SYS TEST AND SYS SENSORS TEST, ALL TEST PASSED REF AMM 34-36-00. THIS CLEARS MEL 22-20B.