Service difficulty report · Support · Boeing 73776N

Difficulty date
November 16, 2021
Submitted
December 13, 2021
Operation
Air carrier
Aircraft
N7722B
Make and model
Boeing 73776N
Aircraft serial
32668
Aircraft time
49,599 hours, 25,042 cycles
Part
Support
Condition
Corroded
Location
Fuselage
Stage of operation
UK
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

CORROSION ON AFT CARGO FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727+8; BS 727+11; BS 727+15; BS 727+18; BS 727A+2; BS 727A+6; BS 727A+10; BS 727A+14; BS 727A+18; BS 727B+2. REMOVED CORROSION, OUT OF LIMITS IAW SRM 53-00-53-1A-2 PARA: 4A FIG. 103 DETAIL D. FABRICATED A NEW SUPPORT IAW DWG 146A-377, DRILLED IAW SRM 51-40-02. APPLIED CHEMICAL CONVERSION COAT PER STEP 4. I. AND DWG 146A7500. INSTALLED.

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