Service difficulty report · Door · Boeing 737990ER

Difficulty date
August 26, 2026
Submitted
August 27, 2026
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
46,695 hours, 14,628 cycles
Part
Door
Condition
Lack Of Lube
Location
Zone 800
Stage of operation
TX
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

FA REPORTS L1 DOOR IS DIFFICULT TO OPERATE. GROUNDED - YES. L1 DOOR SYSTEM TEST FOUND CLOSE TORQUE TO BE 600 IN-LB AND WITHIN LIMITS, OPEN TORQUE FOUND TO BE 445 IN-LB AND OUT OF UPPER LIMIT REF AMM 52-11-00. LUBRICATED L-1 DOOR COMPONENTS REF AMM 12-25-11-640-801. CLEANED L-1 DOOR SEAL REF AMM 52-09-10-100-801 STEP 2. C. (2). ACCOMPLISHED L-1 DOOR SYST TEST & FOUND CLOSE TORQUE 500 IN-LB & OPEN TORQUE 350 IN-LB BOTH WITH IN LIMITS PER AMM 52-11-00-700-804. L-1 DOOR NOW OPERATES SMOOTHLY NOW.