SDR ASAA2017060320942

Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date: June 3, 2017
Submitted: June 7, 2017
Operation: Air carrier
Aircraft: N413AS
Make and model: Boeing 737990ER
Aircraft serial: 35205
Aircraft time: 16,768 hours, 5,449 cycles
System (JASC): 2210 · Autopilot System
Part: Autoland Sys
Condition: Malfunctioned
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

WHILE PERFORMING AN AUTOLAND-HGS APPROACH FOR THE APPROACH SURVEY, RECEIVED A APPROACH WARNING BELOW 50 FT. REASON IS UNKNOWN. DISCONNECTED AND LANDED. ACFT GROUNDED. RESET SYSTEM AND RAN LAND VERIFY TEST IAW AMM 22-11-00/201, OPS CHECKED GOOD.