Service difficulty report · Insert · Boeing 737990ER

Difficulty date
November 28, 2022
Submitted
November 30, 2022
Operation
Air carrier
Aircraft
N428AS
Make and model
Boeing 737990ER
Aircraft serial
36353
Aircraft time
24,589 hours, 7,701 cycles
Engine
Cfmint CFM567B27E
Part
Insert
Part number
6490690210
Condition
Defective
Location
Fan Duct
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

#2 ENGINE LWR OUTBD FAN DUCT PANEL HAS 1EA BAD INSERT. GROUNDED - YES. REMOVED LWR OUTBD PNL. REF B737-900 AMM 72-23-07 ASA 52800. REMOVED AND REPLACED 1EA BAD INSERT WITH NEW REF CFM SPM 70-42-13 REPAIR 1 ASA 74772. INSTALLED #2 ENG LOWER OUTBOARD FAN DUCT PANEL REF. AMM 72-23-07-400-801.