SDR AALA202608261303

Service difficulty report · Transition Panel · Boeing 737823

Difficulty date: July 27, 2026
Submitted: August 27, 2026
Operation: Air carrier
Aircraft: N809NN
Make and model: Boeing 737823
Aircraft serial: 33519
Aircraft time: 50,197 hours, 21,258 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Transition Panel
Part number: 143A7501Y188
Condition: Corroded
Location: Zone 100
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: RIGHT TRANSITION PANEL HAS EXFOLIATION CORROSION BETWEEN STATION 500A TO 500L, RIGHT BUTT LINE 24. MAINTENANCE INSTALLED NEW RIGHT TRANSITION PANEL PER IPC 53-42-11-11 AND AARD 51-00-05-1 AND BOEING DRAWING #143A7500 NOTE: REPAIRS FOR NR'S #495, 500, 503, 506, 509.