Service difficulty report · Controller · Boeing 757224

Difficulty date
March 19, 2021
Submitted
March 22, 2021
Operation
Air carrier
Aircraft
N58101
Make and model
Boeing 757224
Aircraft serial
27291
Aircraft time
103,884 hours, 22,181 cycles
Part
Controller
Part number
211738815
Part serial
1517
Condition
Failed
Location
Cabin Pressure
Stage of operation
CR
How discovered
O
Nature of condition
G, J
Precautionary procedure
A

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

What was found

AUTO PRESS CONTR 1 AND 2 INOP CABIN AUTO INOP INSTALLED SERVICEABLE #2 CABIN PRESSURE CONTROLLER REF AMM 21-31-02-401, VERIFIED BIT TEST PASSED OF #1 & #2 CONTROLLER BIT PROCEDURE REF FIM 21-30-815-802. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1106035 SN OFF 1517 CONTROLLER, CAB OFF 19-2131-9-0004 1517 ON 19-2131-9-0004 0063