Service difficulty report · Air Duct · Boeing 737823

Difficulty date
April 23, 2026
Submitted
April 25, 2026
Operation
Air carrier
Aircraft
N928NN
Make and model
Boeing 737823
Aircraft serial
31172
Aircraft time
37,019 hours, 16,086 cycles
Part
Air Duct
Condition
Contaminated
Location
Zone 200
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: AIR FROM GASPERS ON FLIGHT DECK SMELLS LIKE DIRTY SOCK. FLIGHT ATTENDANTS SMELLED IT DURING TAKEOFF, FLIGHT DECK REMAINED STRONG SMELL. ACCOMPLISHED JC08L00021001, DECONTAMINATED AIR CONDITIONING AND PNEUMATIC SYSTEM DUCTING. PER AMM 21-00-01-801.