SDR B4MR98005

Service difficulty report · Frame · Boeing 727243

Difficulty date: February 1, 1998
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N521DB
Make and model: Boeing 727243
Aircraft serial: 21266
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Corroded
Location: Bs 1030
Stage of operation: IN
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

DURING ROUTINE CPCP INSPECTION, FOUND FS 1030 LT SIDE CIRCUM HAS SMALL AREA OF CORROSION JUST UNDER FLOORBEAM. REMOVED CORROSION IAW SRM 51-10-6. ULTRASONIC THICKNESS CHECK MINIMUM NOMINAL: .045 MAX NOMINAL: .075. FOUND TO BE OUT OF LIMITS IAW B727 SRM 53-10-1. INSTALLED REPAIR IAW B727 SRM 51-40-3 FIG 1. CORROSION TASK CARD NUMBER C53-224-06. NON-ROUTINE TASK CARD NUMBER 11995.