Service difficulty report · Jam-Nut · Boeing 737890

Difficulty date
February 6, 2011
Submitted
February 8, 2011
Operation
Air carrier
Aircraft
N512AS
Make and model
Boeing 737890
Aircraft serial
39043
Aircraft time
9,281 hours, 3,011 cycles
Part
Jam-Nut
Part number
AN3167R
Condition
Loose
Location
Entry Door
Component
Guide Arm Assy
Component part number
141A60752
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

WHILE ACCOMPLISHING TSR 813776 (FWD ENTRY DOOR L1 TROUBLESHOOTING FOR DIFFICULTY TO CLOSE) FOUND DOOR LOWER HINGE HAS EXCESSIVE LATERAL PLAY RESULTING IN LOWER FWD DOOR OVERLAPPING CUTOUT. FOUND L1 DOOR GUIDE ARM OUT OF ADJUSTMENT DUE TO LOOSE ADJUSTMENT JAM NUT. THIS CAUSED DOOR TO HAVE AN OVERLAP CONDITION. (NO LATERAL PLAY NOTED). ADJUSTED GUIDE ARM & SECURED JAM NUT PER B737 800 AMM 52 11 00 820 801 STEP H. ALSO FOUND AFT TWO LOWER STOP PINS TOUCHING STOP PADS. ADJUSTED PINS PER B737 800 AMM 52 11 00 820 801 STEP U. SYSTEM DOOR TESTS GOOD PER B737 800 AMM 52 11 00 700 804.