SDR ASAA2016081017670

Service difficulty report · Unknown · Boeing 737890

Difficulty date: August 10, 2016
Submitted: August 12, 2016
Operation: Air carrier
Aircraft: N562AS
Make and model: Boeing 737890
Aircraft serial: 35091
Aircraft time: 38,254 hours, 11,402 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Unknown
Stage of operation: CL
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

LOST ALL NAVIGATION REF AFTER TAKEOFF. FMS GUIDANCE INFO MISSING. ACFT GROUNDED. COULD NOT DUPLICATE MALFUNCTION. REBOOTED FMS 1 AND 2, BOTH FMS 1 AND 2 BITE CHECK NORMAL AND NEITHER FMS HAD FAULTS LOGGED, REF FIM 34-61, TASK 836 AND AMM 34-61-00.