Service difficulty report · Duct · Boeing 737990ER

Difficulty date
May 18, 2020
Submitted
May 21, 2020
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
19,306 hours, 6,157 cycles
Part
Duct
Part number
332A239012
Condition
Broken
Location
Nr 2 Engine
Stage of operation
IN
How discovered
O
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 ENG INLET COWL ANTI -ICE DUCT HEAT SHIELD BROKEN AT AFT END. GROUNDED - YES. REMOVED AND REPLACED #2 ENG INLET COWL TAI DUCT BETWEEN FAN CASE AND INLET COWL TAI VALVE REF P/P BUILD UP 71-00-02, PERFORMED LEAK CHECK REF B737-900 AMM 30-21-11, LEAK CHECK GOOD.