SDR AALA202503280295

Service difficulty report · Bushing · Boeing 737823

Difficulty date: March 9, 2025
Submitted: March 28, 2025
Operation: Air carrier
Aircraft: N829NN
Make and model: Boeing 737823
Aircraft serial: 33210
Aircraft time: 44,964 hours, 18,882 cycles
System (JASC): 5520 · Elevator Structure
Part: Bushing
Condition: Corroded
Location: Zone 300
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

AIRCRAFT IN BASE MAINTENANCE: LEFT ELEVATOR TAB CONTROL MECHANISM SPRINGS SUPPORT BUSHINGS 2EA (AALA202503287087) (AALA202503280295) HAVE CORROSION. REMOVED AND REPLACED BUSHINGS ON LEFT HAND ELEVATOR TAB MECHANISM, PER B737-NG AMM 27-31-34. PERFORMED SATISFACTORY ELEVATOR AND ELEVATORTRIN CONTROL SYSTEM OPERATION, PER B737NG AM 27-31-00-710-801. PERFORMED SATISFACTORY ELEVATOR TAB CONTROL SYSTEM OPERATIONAL TEST. PER B737-NG AMM 27-31-00-700-815.