Service difficulty report · Strap · Boeing 7377H4

Difficulty date
February 10, 2023
Submitted
March 13, 2023
Operation
Air carrier
Aircraft
N277WN
Make and model
Boeing 7377H4
Aircraft serial
32531
Aircraft time
51,901 hours, 31,206 cycles
Part
Strap
Condition
Corroded
Location
Zn 200 Fus Top
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

MAIN CABIN AFT WET AREA FLOOR STRAP CORROSION AT RBL 18' STA 1060+10' MAIN CABIN AFT WET AREA FLOOR STRAP CORROSION AT RBL 18' STA 1006 + 10'<[01] FOUND EXFOLIATING CORROSION TO BE OUT OF LIMITS REF SRM 51-70-15-1A-1. PART NEEDS REPLACEMENT.;[02] REMOVED MAIN CABIN AFT WET AREA FLOOR STRAP AT RBL 18'' STA 1060 + 10' REF SRM 51-40-02-0G-0;[03] REMOVED MAIN CABIN AFT WET AREA FLOOR STRAP AT RBL 18'' STA 1006 + 10' REF SRM 51-40-02-0G-0;[04] LOCATED; DRILLED AND COUNTERZUNK HOLES AT AFT WET AREA NEW STRAP AT RBL 18' BETWEEN STA 1006 + 10' REF 51-40-05-0G-0;[05] CORRECTION TO STEP 2 AND 3: REMOVED MAIN CABIN AFT WET AREA FLOOR STRAP AT RBL 18'' STA 1006 + 10' REF SRM 51-40-02-0G-0;[06] VERIFIED STEP 1;4 AND 5. OK TO INSTALL FLOOR STRAP AT RBL 18 AND BETWEEN STA 1006+10.;[07] INSTALLED MAIN CABIN AFT WET AREA FLOOR STRAP AT RBL 18'' STA 1006 + 10' REF SRM 51-40-02-0G-0 AND DWG 147A5730;[08] VERIFIED AND INSPECTED STEP #7. FINAL.;[09] VERIFIED.

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