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SDR AALA202412039697

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Service difficulty report · Air Filter · Boeing 737823

FAA SDR system

Difficulty date
December 2, 2024
Submitted
December 3, 2024
Operation
Air carrier
Aircraft
N826NN
Make and model
Boeing 737823
Aircraft serial
31089
Aircraft time
43,538 hours, 18,524 cycles
System (JASC)
2120 · Air Distribution System
Part
Air Filter
Condition
Odor
Location
Zone 100
Stage of operation
NR
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: COMPLY WITH TASK CARD 08L00021001 B737NG SMOKE ODOR FUMES INITIAL TROUBLESHOOTING BEFORE FURTHER FLIGHT. ACCOMPLISHED TASK CARF08L00021. FOUND LEFT HAND RECIRCULATION FAN FINS MOTOR WITH BURNING SMELL. REMOVED AND REPLACED LEFT-HAND RECIRCULATION FAN (AALA202412032693), PER AMM 21-25-02. REMOVED AND REPLACED LEFT-HAND (AALA202412033548) AND RIGHT-HAND (AALA202412039697) RECIRCULATION FILTER, PER AMM 21-25-01. PERFORMED RECIRCULATION SYSTEM TEST, PER AMM 21-25-01. NO BURNING SMELLS IN THE CABIN OPERTIONAL CHECK GOOD.