Service difficulty report · Knob · Boeing 737890

Difficulty date
November 6, 2013
Submitted
November 8, 2013
Operation
Air carrier
Aircraft
N564AS
Make and model
Boeing 737890
Aircraft serial
35103
Aircraft time
27,061 hours, 8,398 cycles
Part
Knob
Condition
Inoperative
Location
Control Panel
Part time
27,061 hours, 8,398 cycles
Stage of operation
NR
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

CAPTAIN`S COURSE SELECTOR KNOB INTERMITTENTLY INOPERATIVE. ACFT GROUNDED. REPLACED DFCS MODE CONTROL PANEL IAW MM 22-11-34. DFCS MODE CONTROL PANEL INSTALLATION TEST NORMAL IAW MM 22-11-34. PERFORMED HGS SENSOR TEST SSM 34-36-00, OPS NORMAL. PERFORMED LAND VERIFY GOOD MM 22-11-00 BITE 49 OPS NML. ALL GROUND VERIFICATION TESTS PASS. DFCS LRU INTERFACE TEST FOR MCP, BITE GRP NR 32 AND LAND VERIFY TEST BITE GRP NR 49 GOOD REF MM 22-11-34 & 22-11-00. HGS SENSOR TEST FOR FCC/AT GOOD REF SSM 34-36-00 ACFT REMAINS CATIIIA A/L - HGS QUAL. LWMP STATUS PLACARD CHECKED. STATUS SCREW IS IN CATIIIA A/L - HGS QUAL POSITION.