Service difficulty report · Regulator · Boeing 737890

Difficulty date
August 23, 2021
Submitted
August 25, 2021
Operation
Air carrier
Aircraft
N590AS
Make and model
Boeing 737890
Aircraft serial
35687
Aircraft time
49,613 hours, 14,819 cycles
Engine
Cfmint CFM567B27
Part
Regulator
Part number
1074926
Part serial
5715
Condition
Damaged
Location
Nr 1 Bleed Sys
Part time
9,050 hours, 2,507 cycles
Stage of operation
IN
How discovered
9
Nature of condition
J
Precautionary procedure
K

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

What was found

LEFT ENGINE BLEED AIR PRESSURE REGULATOR ELECTRICAL RECEPTACLE BACKSHELL IS LOOSE AND THREADS ARE DAMAGED ON BACKSHELL SIDE OF RECEPTACLE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG BLEED AIR REGULATOR REF AMM 36-11-03/401. 4 C/B'S OPENED, TAGGED, AND RESET. ALL OPS AND LEAK CHECKS PASS. ETOPS GROUND VERIFICATION SUCCESSFUL. SEAMC JOE NOTIFIED.