Service difficulty report · Duct · Boeing 737990ER

Difficulty date
October 2, 2020
Submitted
October 5, 2020
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
20,050 hours, 6,452 cycles
Part
Duct
Part number
332A232254
Condition
Worn
Location
#2 Engine
Stage of operation
IN
How discovered
V
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 ACCOMPLISHING 5TH STAGE CHECK VALVE INSPECTION ON NR 2 ENGINE FOUND INTERSECTION MANIFOLD BEARING AND LINK ASSEMBLY WORN. GROUNDED-YES. REMOVED INTERSECTION MANIFOLD DUCT REF B737-900 AMM 36-11-01. INSTALLED NEW INTERSECTION MANIFOLD, UPPER DUCT SUPPORT LINK AND LOWER DUCT SUPPORT LINK, REF AMM 36-11-01, LEAK CHECK GOOD.