Service difficulty report · Valve · Boeing 737724

Difficulty date
February 9, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N13718
Make and model
Boeing 737724
Aircraft serial
28937
Part
Valve
Condition
Inop
Location
Lt Mlg
Stage of operation
CL
Nature of condition
J
Precautionary procedure
A

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

What was found

THE LT MLG INADVERTENTLY DEPLOYED IN FLIGHT AFTER DEPARTING IAH. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LG CONTROL VALVE IAW MM 32-31-61, PAGE 401. LEAK AND OPERATIONAL CHECKS WERE GOOD. A LEFT UPLOCK TEST WAS PERFORMED IAW MM 32-32-31 AND AN EMERGENCY EXTENSION WAS PERFORMED IAW MM 32-34-00 AND ALL CHECKED NORMAL. AN EVALUATION FLIGHT WAS COMPLETED WITH NO DISCREPANCIES.