Service difficulty report · Intercostal · Boeing 737

Difficulty date
April 3, 2023
Submitted
April 5, 2023
Operation
Air carrier
Aircraft
N25705
Make and model
Boeing 737
Aircraft serial
28766
Aircraft time
77,491 hours, 27,915 cycles
Part
Intercostal
Part number
146A74021
Condition
Corroded
Location
Sta 847 And 867
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

AFT CARGO COMPARTMENT CORROSION @ WASTE TANK DUMP CHUTE ENCLOSURE SUPPORT STRUCTURE BETWEEN STA 847 AND 867, BETWEEN S-25L AND S-26L. (REF AAR N/R 975224) AFT CARGO COMP WASTE TANK DUMP CHUTE ENCLOSURE SUPPORT STRUCTURE BETWEEN STA 847 AND STA 867 FOUND OUT OF LIMITS AS PER SRM 51-10-02-0G-0. REMOVED AND REPLACED INTERCOSTAL AS PER SRM 51-40-02-0G-0 (WORK ACCOMPLISHED BY V894534)