SDR CALA2025071706654

Service difficulty report · Web · Boeing 737824

Difficulty date: July 9, 2025
Submitted: July 17, 2025
Operation: Air carrier
Aircraft: N16234
Make and model: Boeing 737824
Aircraft serial: 28946
Aircraft time: 78,580 hours, 29,289 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Part number: 146A81236
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

AFT CARGO DOOR SURROUND STRUCTURE MAIN SILL WEB POSSIBLE CORROSION BETWEEN BS 794 & 847. R & R LOWER MAIN SILL WEB ON AFT CARGO IAW SRM 51-40-02-0G-0, SRM 51- 40-05-0G-0, SRM 51-40-08-0G-0, AMM 51-21-41-370-802, AMM 51-2 1-72-370-804, DWG 146A 8340 REV A, & DWG 146A8123 REV C.