Service difficulty report · Controller · Boeing 737890

Difficulty date
March 29, 2017
Submitted
April 3, 2017
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
39,004 hours, 11,567 cycles
Part
Controller
Part number
71211997101AC
Part serial
0111931
Condition
Failed
Location
Cabin Pressure
Part time
57,029 hours, 20,096 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED AFTER LANDING. ACFT GROUNDED. ACCOMPLISHED GVI NR 2 CABIN PRESSURE CONTROLLER (CPC), FOUND COPPER TAPE SEAL AT THE EDGES & FRONT OF THE CPC TORN & NUMEROUS HOLES. REMOVED & REPLACED THE NR 2 CPC IAW AMM 21-31-01. A GROUND FUNCTIONAL CHECK WAS NORMAL IAW FIM 21-31, TASK 801 DCPC BITE PROCEDURE, AND PRESSURIZATION SYSTEM GROUND TEST IAW AMM 21-31-00-700-802.