SDR SWAA2021122041238

Service difficulty report · Channel · Boeing 7377H4

Difficulty date: November 7, 2021
Submitted: December 20, 2021
Operation: Air carrier
Aircraft: N778SW
Make and model: Boeing 7377H4
Aircraft serial: 27883
Aircraft time: 68,867 hours, 40,745 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Condition: Corroded
Location: Fuselage
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

RT FWD CARGO FLOOR BS 500A - 500D, S25R, WL 155.5 Z CHANNEL HAS CORROSION IN SEVERAL AREAS. LOCATED AND DRILLED A NEW Z CHANNEL IAW SRM 51-40-05-0G-0. VERIFIED STEP 1. TREATED AND APPLIED PRIMER TO Z CHANNEL IAW SRM 51-20-01-0G-0. FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2. LOCATED AND DRILLED THE NEW Z CHANNEL IAW SRM 51-40-05-0G-0.

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