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SDR ASAA2017112322673

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Service difficulty report · Autoland Sys · Boeing 737890

FAA SDR system

Difficulty date
November 23, 2017
Submitted
November 27, 2017
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
23,077 hours, 6,703 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

RECEIVED AN APPROACH WARNING AND NO ROLLOUT AT 20 FT WHILE ATTEMPTING AN AUTOLAND WITH HEADINGS MONITOR. ACFT GROUNDED. HEADINGS LOGGED NO AIII & APPROACH WARNING FCC1 INVALID AND RADAR ALTITUDE 1. DFCS LOGGED MULTIPLE FCC A&B FAULTS LAST LEG. ACCOMPLISHED FCC A & B CURRENT STATUS TEST IAW AMM 22-11-00, HEADINGS OPS TESTED IAW SMM 34-36-00 & RADAR ALTITUDE OPS CHECKED IAW AMM 34-33-00, ALL TESTS PASSED. ACCOMPLISHED LLM SPECIAL CONDITION RELATED TO LANDING AND TAKEOFF FOR HEADINGS/ AUTOLAND IAW AMM 22-00-01, ALL TESTS PASSED. LAND VERIFY TEST PASSED IAW AMM 22-11-00 & HGS SYSTEM TEST PASSED REF SMM 34-36-00. NO HISTORY PAST 30 DAYS.