SDR ASAA2022012837284

Service difficulty report · Unknown · Boeing 737990ER

Difficulty date: January 28, 2022
Submitted: February 10, 2022
Operation: Air carrier
Aircraft: N486AS
Make and model: Boeing 737990ER
Aircraft serial: 44107
Aircraft time: 23,611 hours, 7,498 cycles
System (JASC): 2210 · Autopilot System
Part: Unknown
Condition: Unknown
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

MCP PANEL WAS INOP UPON ARRIVING TO AIRCRAFT. GROUNDED - YES. INIITAL EVALUATION, NO FAULTS ON DFCS BITE FAULT REVIEW IAW B737-900 AMM 22-11-00-740-801. PASSES ALL MCP TESTS. FCC LRU REPLACE TEST, NO FAULTS. PERFORMED ALL LIBRARY TESTS IAW AMM 22-11-00-740-806, NO FAULTS. ALSO REF AMM 22-00-01-730-803 CAT III ALD NOW AUTHORIZED. IN ADDITION, PERFORMED HGS SYSTEM TEST IAW SMM 34-36-00 SEC 500. NO FAULTS FOUND.