SDR ASAA2021051234801

Service difficulty report · Autoland Sys · Boeing 737890

Difficulty date: May 12, 2021
Submitted: May 14, 2021
Operation: Air carrier
Aircraft: N512AS
Make and model: Boeing 737890
Aircraft serial: 39043
Aircraft time: 45,845 hours, 13,568 cycles
System (JASC): 2210 · Autopilot System
Part: Autoland Sys
Condition: Faulted
Stage of operation: LD
How discovered: 9
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

AUTOLAND UNSUCCESSFUL, APPROACH WARN ON FLARE FOR NO APPARENT REASON, ALL WITHIN PARAMETER. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-36 TASK 807. NO EXISTING FAULT, LEG 1 HAS FAULT MSG VERTICAL GUIDANCE COMP, NO CAT AIII, PERFORMED HGS-4000 SYSTEM TEST & 737NG LAND VERIFY TEST, ALL REQUIRES TESTS PASSED, HGS-4000 SSM 34-36-00 & MTX TASK 22-11-00/201.