Service difficulty report · Windshield · Boeing 737990ER

Difficulty date
March 3, 2020
Submitted
March 7, 2020
Operation
Air carrier
Aircraft
N409AS
Make and model
Boeing 737990ER
Aircraft serial
41733
Aircraft time
28,305 hours, 9,153 cycles
Part
Windshield
Part number
141A48001
Part serial
12269H1170
Condition
Malfunctioned
Location
Cockpit
Part time
28,305 hours, 9,153 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

L1 WINDOW HEAT OVERHEAT LT ILLUMINATED. GROUNDED - YES. BOTH L1 WINDOW SENSORS ARE OPEN REF B737-900 AMM 30-41-21-760-801. 2 C/B'S PULLED & MIG 51A ATTACHED P18-3 E1 AND P6-11 B9. R/R FWD LH WINDSCREEN IAW AMM 56-11-11-000-801/400-801. PULLED/COLLARED 12 CB'S FOR WINDOW REMOVAL. ACCOMPLISHED G.9 PRESS CK ACCOMP'D AMM 56-11-11-400-801. RMVD TAGS & RESET 14 EA CB'S. 2EA CB'S PULLED/TAGGED/TAGS RMVD & CB'S RESET. 9EA C/B'S PULLED, TAGGED, TAGS RMVD CB'S RESET. REQ'S SAFTY WIRE WINDSHIELD WIPER ACCMP'D AMM 56-11-11-400-801. TRANSFERRED TO LOG PAGE 12113031. PER B737-900 AMM 56-11-11 SEALED WINDOW WITH QUICK CURE SEALANT PER EA 5100-01004 AND TAPED. WINDOW CHANGE COMP PER AMM 56-11-11 T. OPS CKS NORMAL.