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 FWD CARGO FLOOR TO SIDEWALL SUPPORT BS 400+6+10, 420+10, 440+6, 500+2, 500B+18, 500C+10, LBL 25. REMOVED CORROSION ON TO SIDEWALL SUPPORT, FOUND TO BE OUT OF LIMITS AT BS.400+6 L=1.800' W=0.700' D=0.013' ORIGINAL THICKNESS 0.040' REMAINING MAT 0.027' IAW SRM 53-00-53-1A-2, FIG 103, DETAIL C. LOCATE, DRILLED AND APPLIED CHIMICAL CONVERSION COATING ON NEW FLOOR SIDEWALL SUPPORT BS 400 TO 500D IAW SRM 51-20-01-0G-0 & SRM 51-40-05-0G-0. FABRICATED NEW FLOOR TO SIDEWALL SECTION BS 400-500D LBL 25 & SPLICE AT BS 490 AND APPLIED CHEMICAL CONVERSION COATING IAW SRM 51-40-05, SRM 51-20-01, & SRM 53-00-53-2R-6.

More about the Boeing 737-7Q8