Service difficulty report · Control Unit · Boeing 727228

Difficulty date
July 24, 2001
Submitted
July 26, 2001
Operation
Air carrier
Aircraft
N727DH
Make and model
Boeing 727228
Aircraft serial
20204
Part
Control Unit
Condition
Defective
Location
Autopilot Sys
Stage of operation
AP
How discovered
O
Nature of condition
F
Precautionary procedure
K

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

What was found

AUTO-PILOT ON AUTOGLIDE SLOPE ABOUT 300 AGL STAB OUT OF TRIM LIGHT ILLUMINATED THEN AIRCRAFT AGGRESSIVELY WENT NOSE DOWN, BELOW GLIDE SLOPE.REPLACED PITCH CONTROL UNIT IAW B727 MM 22-11-101 OPS CK GOOD