Service difficulty report · Support · Boeing 7377Q8

Difficulty date
December 14, 2021
Submitted
February 2, 2022
Operation
Air carrier
Aircraft
N7864B
Make and model
Boeing 7377Q8
Aircraft serial
30638
Aircraft time
57,729 hours, 38,472 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 BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 727+11; BS 727A+18; BS 727B+10; BS 727B+14; BS 727C+2; BS 727C+6; BS 727C+10; BS 727C+14; BS 727C+15; BS 727D. LOWEST REMAINING THICKNESS 0.030' ON BLENDED AREA L=2.3'X W=1'XD=0.010 ORIG. MAT. THK.=.040' FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 STEP 4A FIG 103 DETAIL D, SRM 53-60-53-01-2. FLOOR TO SIDEWALL SUPPORT. DAMAGE REMOVAL PART TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 STEP 4A FIG. 103 DETAIL D.; [05] THIS DISCREPANCY WILL ACCOMPLISHED ON CARD TTG8Q009TTF9.

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