SDR ASAA2018030123794

Service difficulty report · Channel · Boeing 737890

Difficulty date: March 1, 2018
Submitted: March 12, 2018
Operation: Air carrier
Aircraft: N546AS
Make and model: Boeing 737890
Aircraft serial: 30022
Aircraft time: 48,768 hours, 16,392 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Part number: 146A750231
Condition: Corroded
Location: Bs 727j-767
Stage of operation: IN
How discovered: 9
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 BAY FLOOR PANEL LEFT SIDE ZEE CHANNEL HAS CORROSION AT 7 FASTENER HOLES. ACFT GROUNDED. BLENDED CORROSION ON THE CHANNEL BS 727J - 747 AND 727H + 9. FOUND TO BE WITHIN LIMITS IAW SRM 53-00-53, FIG 103, SHEET 2. REMOVED THE CHANNEL IAW SRM 53-00-53-2R-5, REPAIR 5. FABRICATED CHANNEL REPAIR IAW SRM 53-00-53-2R-5, AND INSTALLED IAW SRM 53-00-53-2R-5, AND DWG 146A7500, REV D.