Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 14, 2021
Submitted
June 14, 2021
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
52,415 hours, 31,247 cycles
Part
Support
Condition
Corroded
Location
Bs 420 Lbl24
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

CORROSION ON FLOOR TO SIDEWALL SUPPORT; FCB LBL24; BS420+13.5; WL157 ; / THIS DISCREPANCY WILL BE ACCOMPLISHED ON CARD TTG8Q0051MKY; THIS DISCREPANCY WILL BE ACCOMPLISHED ON FAULT TTG8Q0051MKY. THE SRM 53-30-53-01-2, IDENTIFICATION AND SRM53-00-53-1A-2 ALLOWABLE DAMAGE IS APPLICABLE TO A/C. REMOVED CORROSION ON FCB FLOOR TO SIDEWALL SUPPORT AT BS500+10 ,LBL 24, WL 154 PER SRM 51-10-02-0G-0 MEASURE L=1.5" X W=.7" X D=0.020" MAX .MAT LOSS IS 0.020", REMAINING THICKNESS IS 0.020", ORIGINAL THICKNESS IS 0.040" (BAC 1496-444), FOUND OUT OF LIMITS, REWORKED AREA PER B 737-700 SRM 53-00-53-1A-2 ALLOWABLE DAMAGE PARAG. 4A (2) DETAIL. (E) FIG. 103.-

More about the Boeing 737-7H4