Service difficulty report · Duct · Boeing 737823

Difficulty date
August 30, 2026
Submitted
September 3, 2026
Operation
Air carrier
Aircraft
N965NN
Make and model
Boeing 737823
Aircraft serial
33239
Aircraft time
33,943 hours, 14,332 cycles
Part
Duct
Condition
Leaking
Location
Zone 500
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: LEFT WING BODY OVERHEAT LIGHT ILLUMINATED ON DESCENT. RAN QRH PROCEDURE AND ISOLATED BLEED AIR FROM LEFT SIDE OF SYSTEM. DECESION MADE TO DIVER TO MSN EMERGENCY DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED LEFT WING LEADING EDGE ANTI-ICE DUCT AT WING STATION 278 IN REFERENCE TO AMM 30-11-31.