SDR ASAA2022123041568

Service difficulty report · Floor Support · Boeing 737900ER

Difficulty date: December 30, 2022
Submitted: January 21, 2023
Operation: Air carrier
Aircraft: N273AK
Make and model: Boeing 737900ER
Aircraft serial: 61554
Aircraft time: 18,901 hours, 6,144 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146A750121
Condition: Corroded
Location: Bs 773
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 PIT FLOOR SUPPORT UPPER SURFACE HAS CORROSION AT BS 773, LBL 17. GROUNDED - YES. REPAIRED AFT CARGO FLOOR SUPPORT UPPER SURFACE AT BS 773, LBL 17 IAW SRM 53-00-53-2R-3 ORIG. MAT=.063, MAT. REMOVED=.016, MAT. REMAINING=.047, OUT OF LIMITS IAW SRM 53-00-53-1A-2.

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