Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
July 2, 2015
Submitted
July 7, 2015
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
10,497 hours, 3,411 cycles
Part
Autoland Sys
Condition
Malfunctioned
Stage of operation
AP
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

PRACTICE AUTOLAND FAILED WITH THE FOLLOWING INDICATIONS INITIAL FLAIR ABOUT AT 30' CAUSED HIGHER THAN NORMAL FLAIR ALTITUDE AND HIGHER THAN NORMAL PITCH AT TOUCHDOWN. DURING EXTENDED FLAIR THE ACFT DRIFTED FROM 15' LT OF CENTER TO 35' RT OF CENTER. PROTECTED AREA VERIFIED CLEAR. WINDS CALM. ACFT GROUNDED. PERFORMED DFCS GROUP NR 49 LAND VERIFY TEST IAW MM 22-11-00 AND HOUSINGSS OPS TEST IAW SMM 34-36-00. ALL TESTS PASS. DFCS BITE FAULT REVIEW SHOWS NO FAULTS FOR MOST RECENT FLIGHT LEG. ALSO ACCOMPLISHED OPS TEST IAW AMM 34-33-00 AND ILS OPS TEST IAW AMM 34-31-00. ALL TEST PASSED. NO HISTORY 30 DAYS.