Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date
May 5, 2021
Submitted
June 23, 2021
Operation
Air carrier
Aircraft
N938WN
Make and model
Boeing 7377H4
Aircraft serial
36645
Aircraft time
39,916 hours, 24,221 cycles
Part
Floor Support
Condition
Corroded
Location
Flight Deck
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*** FLIGHT DECK FLOOR CHANNEL SUPPORT HAS AREAS OF CORROSION; BS 259.5 - 270; LBL 3 - RBL 3; WL 207.5 / REMOVED CORROSION ON SUPPORT CHANNEL BS 259.5 - 270; LBL3 - RBL3 WL 207.5 MAX MATERIAL LOSS AT BS 267 LBL2 WL207.5 1' X .5' X .012' ORIGINAL THICKNESS .040 FOUND TO BE OUT LIMITS PER SRM 53-10-51-1A-1 PAR 4B DETAIL E.; REMOVED AND REPLACED FLIGHT DECK FLOOR CHANNEL SUPPORT BS 259.5 - 270 LBL 3 - RBL 3 WL. 207.5 I.AW SRM 51-40-02-0G-0; SRM 51-40-05-0G-0 AND DWG 141A5210 59361U 07MAY21

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