SDR NACA20100021

Service difficulty report · Beltframe · Boeing 737232

Difficulty date: November 29, 2010
Submitted: January 19, 2011
Operation: Air carrier
Aircraft: N320DL
Make and model: Boeing 737232
Aircraft serial: 23092
Aircraft time: 67,257 hours, 50,559 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Beltframe
Condition: Corroded
Location: Fuselage
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

CORROSION ON BELTFRAME TO SKIN AT STA 727B FROM LBL 10 TO RBL 10 APPROXIMATELY AFT CARGO PIT. REMOVED CORROSION IAW B737 SRM 51-10-6, BELTFRAME FOUND TO BE BEYOND LIMITS PER 53-10-1 FIG 1, SKIN ALSO FOUND TO BE BEYOND LIMITS PER 53-10-1 FIG 1. REPLACED SKIN AT STA 727B FROM LBL 10 TO RBL 10 IAW B737 SRM 53-30-3 FIG 48 DETAIL 8. REPAIRED BELTFRAME AT STA 727B LBL 10 TO RBL 10 IAW B737 SRM 53-10-4 PG 16 REPAIR 2.