SDR CALA2016101000745

Service difficulty report · Angle · Boeing 737824

Difficulty date: October 9, 2016
Submitted: October 10, 2016
Operation: Air carrier
Aircraft: N12221
Make and model: Boeing 737824
Aircraft serial: 28930
Aircraft time: 57,198 hours, 20,423 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Angle
Part number: 6471698
Condition: Corroded
Location: Threshold
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

CABIN R2 DOOR LOWER THRESHOLD SUPPORT FRAME HAS CORROSION ON UPPER SURFACE AT SEVERAL LOCATIONS. MAIN SILL CHORD REPLACED IAW DWG 147A8501 REV C AND SRM 51-40-02, AND ECRA 5310-06962. REMOVED CORR. AT R2 DOOR LWR SILL INNER CHORD, ORIG. THICKNESS IS .080 MATERIAL REMOVED IS .040 MATERIAL REMAINING IS .040 FOU ND TO BE OUT LIMITS IAW SRM 57-70-15 AND SRM 57-70-11, L OC. DRILLED AND INSTALLED THE INNER CHORD IAW DWG 147A85 01 REV C AND SRM 51-40-02.