Service difficulty report · Flight Dir · Boeing 727225

Difficulty date
April 26, 2001
Submitted
April 27, 2001
Operation
Air carrier
Aircraft
N743DH
Make and model
Boeing 727225
Aircraft serial
22438
Part
Flight Dir
Condition
Malfunctioned
Location
Cockpit
Stage of operation
AP
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

COPILOT''S FLIGHT DIRECTOR GIVES ERRONEOUS COMMANDS (S-TURNS THROUGH LOCALIZER); NEVER STABILIZES. TESTED SYSTEM W/T-30 TEST BOX AND ALL LOCAL FREQUENCIES WITH NORMAL AND AUX NAV SETTINGS IAW B727 MM 34-31-02. NO DEFECTS NOTED.