SDR WRLA200325

Service difficulty report · Sensor · Doug MD11

Difficulty date
December 8, 2003
Submitted
January 14, 2004
Operation
Air carrier
Aircraft
N271WA
Make and model
Doug MD11
Aircraft serial
48518
Part
Sensor
Part number
2568A13
Condition
Damaged
Location
Aoa
Stage of operation
CL
How discovered
O
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

UPON PASSING ACCELERATION ALTITUDE A/C SUSTAINED MULTIPLE MALFUNCTIONS. PASSING 1968 FT OCH ALT GCP WENT TO BLANK. SIMULTANEOUSLY CAPT SIDE FD BLANK. CAPT SIDE ALT READOUT INDICATED 1500 FT LOW, VERIFIED WITH LUKE AFT DEP. CAPT SIDE AIRSPEED INDICATED 20-30 KTS SLOWER THAN F/O SIDE. LVL 2 'SEL ELEV FEEL MAN' LATER EXTINGUISHED. LVL 2 'LSAS ALL FAIL ALERT. PERFORMED PILOT & STATIC LEAK CHECKS & VERIFICATION OF INDICATIONS ALL GOOD. RAN ALL LSAS & WERE GOOD. PERFORMED, ELEV FEEL ZRTS AND IT CHECKED GOOD. PROBLEMS WERE CAUSED BY IMPROPERLY INSTALLED AOA SENSOR REMOVED AND REPLACED ANGLE OF ATTACH SENSOR. (M)

More about the Doug MD-11