What was found
AIRCRAFT WAS GROUNDED: ENROUTE THE LEFT FORWARD WINDOW "OVERHEAT" LIGHT ILLUMINATED THIRTY SECONDS LATER THE L1 OUTER PANE CRACKED. EMERGENCY WAS DECLARED INTO ORD. REMOVED AND REPLACED NUMBER 1 WINDOW.
- Difficulty date
- February 25, 2023
- Submitted
- February 27, 2023
- Operation
- Air carrier
- Aircraft
- N871NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31127
- Aircraft time
- 34,153 hours, 14,373 cycles
- System (JASC)
- 5610 · Flight Compartment Windows
- Part
- Window
- Part number
- 141A48001
- Part serial
- 19155H4684
- Condition
- Cracked
- Location
- Zone 200 - Fuse
- Stage of operation
- DE
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.