SDR ASAA2026012964576

Service difficulty report · Frame Splice · Boeing 737790

Difficulty date: January 29, 2026
Submitted: February 26, 2026
Operation: Air carrier
Aircraft: N611AS
Make and model: Boeing 737790
Aircraft serial: 29753
Aircraft time: 77,762 hours, 41,637 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame Splice
Part number: 146A13008
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 BS 727D FRAME SPLICE CORRODED AT RBL-21. GROUNDED - YES. REMOVED & REPLACED NEW SPLICE PN 146A1300U8 ON AFT CARGO BS 727D, RBL 21 IAW SRM 51-40-02-0G-0. REMOVED CORROSION FOUND TO BE OUT OF LIMITS IAW SRM 53-00-07-1A-1. W 1, O .07, R .054, L 1, D .054.