Service difficulty report · Gust Lock · Boeing 737990ER

Difficulty date
March 26, 2026
Submitted
March 27, 2026
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
39,801 hours, 12,390 cycles
Part
Gust Lock
Condition
Stuck
Location
Zone 800
Stage of operation
IN
How discovered
V
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

L1 DOOR GUST LOCK STUCK IN OPEN POSITION. GROUNDED - YES. L1 DOOR GUST LOCK OPS CHECK NORMAL PER AMM 52-11-00-200-801.