Service difficulty report · Intercostal · Boeing 737823

Difficulty date
March 26, 2025
Submitted
April 5, 2025
Operation
Air carrier
Aircraft
N832NN
Make and model
Boeing 737823
Aircraft serial
33521
Aircraft time
44,223 hours, 18,744 cycles
Part
Intercostal
Part number
213A71331
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: LEFT HAND RAM AIR INLET, DUCT SUPPORT INTERCOSTAL CORRODED AROUND FASTENERS. UPON EVALUATION INTERCOSTAL FOUND WITH EXFOLIATION ON SEVERAL AREAS, AND IS FOUND TO BE OUT OF LIMITS, PER B737-NG SRM 51-10-02. REMOVED AND REPLACED CLIP (INTERCOSTAL). PER B737NG AIPC 21-51-22-11, AND PER B737 NG SRM 51-40-02-0G AND SRM 51-40-05-0G.