Service difficulty report · Floor Support · Boeing 73771B

Difficulty date
October 25, 2022
Submitted
November 11, 2022
Operation
Air carrier
Aircraft
N7854B
Make and model
Boeing 73771B
Aircraft serial
29372
Aircraft time
45,663 hours, 30,470 cycles
Part
Floor Support
Condition
Cracked
Location
Bs 312-328 Lbl45
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

CRACKED FLOOR SUPPORT BETWEEN BS 312-328 LBL 45 WL 208. REMOVED FED GIRT BAR BRACKETS PER AMM 25-66-02-000-801. REMOVED FED CORNER AND CENTER KICKPLATES AND PEELED BACK DURA-RUG FOR ACCESS PER AMM 25-27-21-000-801 PARA. 2F(1-2C). REMOVED CRACKED FLOOR SUPPORT BS 312-BS 328; LBL 45 PER SRM 51-40-02. LOCATED; DRILLED; DEBURRED AND APPLIED CIC TO NEW INTERCOSTAL PER SRM 51-40-05 AND AMM 51-21-91-620-802. INSTALLED GEL TAPE TO UPPER SURFACE OF FLOOR SUPPORT AND REPLACED NUT CLIP PER AMM 53-21-00-400-801 PARA. 3F5(D) AND 3F10. VERIFIED CORRECTIVE ACTIONS 4 AND 5. INSTALLED FLOOR SUPPORT BETWEEN BS 312-328 LBL 45 WL 208 PER SRM 51-40-02-0G-0 AND DRAWING # 141A5400 SHT 26 REV-. VERIFIED CORRECTIVE ACTION #7. UPDATED STEP 1. CERTIFIED STEP 1. VERIFIED STEP 1.

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