Service difficulty report · None · Boeing 737990ER

Difficulty date
December 28, 2021
Submitted
December 30, 2021
Operation
Air carrier
Aircraft
N491AS
Make and model
Boeing 737990ER
Aircraft serial
44109
Aircraft time
22,626 hours, 7,193 cycles
Part
None
Part number
56100026
Part serial
15257H4623
Condition
None
Location
Control Cabin
Part time
22,642 hours, 7,198 cycles
Stage of operation
CL
How discovered
V
Nature of condition
M
Precautionary procedure
O

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

What was found

5 MINUTES AFTER TAKEOFF R SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. PER QRH TURNED OFF FOR 5 MINUTES, THEN BACK ON . OVERHEAT LIGHT ILLUMINATED AGAIN. GROUNDED - YES. PERFORMED B737-900 AMM 56-12-11-400-801 STEP 3.F.6-7, NEWLY INSTALLED WINDOW CODE H16, MOVED TAP POSITION TO POST 1 OF TB5014 REF B737-900 WDM 30-41-11 PG 3 SH 2. REPLACED NO. 2 SLIDER WINDOW PER AMM 56-12-11. WINDOW ADJUSTMENT IS COMPLETE PER AMM 56-12-11. WINDOW HEAT SYSTEM OPS TEST REF AMM 30-41-00-710-810 NORMAL. LEAK CHECK OF WINDOW GOOD.