SDR ASAA2016052316834

Service difficulty report · Packing · Boeing 737890

Difficulty date: May 23, 2016
Submitted: May 25, 2016
Operation: Air carrier
Aircraft: N583AS
Make and model: Boeing 737890
Aircraft serial: 35681
Aircraft time: 33,793 hours, 9,994 cycles
Engine: Cfmint CFM567B27B3
System (JASC): 7920 · Engine Oil Distribution (Airframe Furnished)
Part: Packing
Part number: J221P019
Condition: Failed
Location: Nr 1 Engine
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

WHILE PERFORMING TASK CARD 78472040 FOUND FWD MAINTENANCE, AGT/TGB SPOOL VALVE INNER NOT FULLY SEALING. ACFT GROUNDED. ACCOMPLISHED TASK AMM 79-21-01-400-804-F00, OPS AND LEAK CHECKS GOOD. INNER, PN J221P019 AND OUTER PN 335-299-401-0SD, SPOOL SEALS REPLACED.