Service difficulty report · Spar · Boeing 737824

Difficulty date
September 25, 2025
Submitted
September 29, 2025
Operation
Air carrier
Aircraft
N77258
Make and model
Boeing 737824
Aircraft serial
30802
Aircraft time
75,311 hours, 28,294 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Part number
112A2101204
Condition
Corroded
Location
Zone 600
Stage of operation
IN
How discovered
O
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

INTERGRANULAR CORROSION RT WING IB FRONT SPAR AT BOOST PUMP LOWER GROUND WIRE ATTACHMENT AREA. RT WING IB FRONT SPAR AT BOOST PUMP LOWER GROUND WIRE ATTACHMENT FOUND OUT OF LIMITS , PERFORMED REPAIR ON AREAS IAW AAR ESR-WI 13-12798 AND ECRA 5720-03564.