Service difficulty report · Valve · Boeing 737890

Difficulty date
June 18, 2020
Submitted
June 20, 2020
Operation
Air carrier
Aircraft
N587AS
Make and model
Boeing 737890
Aircraft serial
35684
Aircraft time
47,615 hours, 13,833 cycles
Engine
Cfmint CFM567B27B3
Part
Valve
Part number
32911866
Part serial
GRTV7998
Condition
Leaking
Location
Nr 1 Engine
Part time
35,403 hours, 10,410 cycles
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
K

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

What was found

NR 1 ENG HPT ACC LEAKING 4 DROPS PER MIN. GROUNDED - YES. REMOVED AND REPLACED THE NR 1 ENG HPT ACC VALVE IAW AMM 75-21-01-000-801-F00, & AMM 75-21-01-400-801-F00. LEAK CHECKED GOOD AND ACTUATOR TEST C/W -OPS NORMAL.